Drz400 big bore jetting fcr. i try in second and it just doesn't have .

Drz400 big bore jetting fcr RedF Discussion starter. CW big bore. A big bore kit is on par with the power increase/feel of the carb according to the internet. The carb is actually measures very close to 40mm. - 200 Main Air Jet - 160 Main Jet - 45 Pilot Jet - 100 Pliot Air Jet - EMR or EMS Needle OK I have read a ton on all the different ways to jet the (TT) FCR MX 39mm Carb with no TPS, and there are 3 different camps saying a lot of different things. Stock carb. The next camp is leave the Pilot Air jet in , and the 3rd camp goes with a total change in jetting going with a 200 Pilot Air Jet and smaller Pilot Jet 38-42. I think the early 250's used a 37mm. Hotcams. It's still bogging now at a standstill once warm, but I don't notice it while riding anymore. Carb settings: 145 main jet 200 main air jet60 pilot air jetOCEMP needle ,clip is second notch up from the bottom47 pilot jet2 turns on the fuel screw The bike is I have a 2000 DRZ400e that I have just put a 440 big bore on, hotrods crank i just need Jetting spec's to finish it up for now. 42 pilot jet. Contact Us; I just missed 46 with oxygenated race fuel. I ended The restriction from the quiet insert may be more noticeable on my bike with a big bore kit and especially stage 2 cams that move the power up DRZ400/E/S/SM ; Dyno results 434, FCR, Hotcams Theme . Mike N - My Just got off the dyno, my drz has and FCR 39, stage 2 hot cams, 434 big bore, and full Yoshi. I need to check on this because my FCR has the hole below the fuel inlet plugged. for some reason my drz400 can only get it up in first. It has a Keihin 39 FCR Racing Carb with all the conversion parts, 3x3 mod, and No Toil foam air filter. It has the 3x3 mod, and a Yoshimura slip-on exhaust. Also does any one how much HP those falcon crank motors are putting out?? I want to see you big bore guys jetting specs with stock mikuni Carb. I'm 535 ft above sea level. For those owning a DRZ power gains from an FCR swap may seem very attractive, until you consider the cost. 3:1 comp vertex piston-stage 2 hotcams-full mrd exhaust-fcr39mx current fcr jetting 155 main jet 45 pilot as far as fcr jetting goes, where would there be a goo place to start. I read one thread about removing the CE and running a 100 pilot air jet. The DRZ engine is a good off ive thought about doing a big bore kit on my 2003 drz 400k/e. 200 main air jet. Got a bit of After riding my friend's WR450, I would be inclined to just sell the S before dropping big dough on it and getting a WR450, which comes stock with an FCR and a bigger bore. I do have a jd jet kit in hand. My bike has the big bore kit, stage 2 cams, 3x3, and Hi everyone, I need advice on jetting FCR 39 on my DRZ. JD red needle in the 4th or 5th clip, I don’t remember, 168 main jet, 200 MAJ 100 PAJ, O-ring mod. Could you please advise on jetting for the carb? DRZ400e 2000. I’m thinking about getting a 05’ drz400e full carb with the boot and airbox for $450 to put on my 2021 and I This Keihin FCR carburetor kit will give you the most out of your 2000-2009 Suzuki DRZ400S/SM/E motorcycle. Keihin FCR-MX39 Carburetor (throttle and cables not included) Jet Kit -- Correct jetting for your bike will be installed pro to shipping, DRZ400 Jetting for: sea level, stock exhaust or quiet 96db aftermarket pipe, 3x3 Mod. I tried tapping with a screwdriver handle and draining some from the bowl drain, but no luck. My chain snapped and punched a hole in my case so I’m rebuilding with a big bore and stroker kit, as well as the stg1 hot cams (and the wide ratio gear set by ACT, should be fun). If anyone has specific jetting settings, that would really be appreciated, and or any other "trick" thing I should do. All Activity; TT Picks; first one I tried was used from a WR,,, used carb + older bike= worst headach in the world troubleing shooting a jetting issue that was caused by a Hot cams, and an FCR as my only mods prior to big bore. JD jet kit. Buy a few plugs and do a plug chop to make sure you're not lean. They come standard fitted with the Keihin FCR Carb. FCR 39 jetting help. Jump to Latest 03z Big Bore Stroker +4 stroker, +4 big bore, KW SS stock size valves, dual KW springs, CP piston 12. In fact it's kind of a misnomer. Ok, here is the link to the JDK007 DRZ400 big bore stroker jet kit. how much does it cost to bore/re-sleeve? Save Share Reply Quote Like. Posted March 30, 2015. elevation ca. Here's what I got: '03 E FCR w/E airboot 155 mj 42 pj NCYR clip 2 CE removed, slide body and intake bell connected Eddies AP mod 2. 3:1 compression, 47&48 new style Hotcams, 400ex thumber, fcr 39, 400ex boot, +3 up 1 A arms, +2 axle Hi, I have the same basic engine setup with a few subtle differences. Thanks again to all the helpful people here on TT, I love getting things setup right on the first try ! Smooth bore for maximum air flow. Jun 27, 2013. Search In Does the 39 work with a 440 big bore with cams, It also look that it is more simple to install FCR than do the re jetting of the existing one. I'm not sure about the 450s. i got 2 needles i'm a little confused on what to use. 155 main jet; You need the FCR carb, the throttle response is slow with the CV carb. I have an athena 440 big bore, hotcams intake and exhaust cams in the mail right now. Avg temp is 70-90 degress f. Spend your money on cams. Also, 162 is the jet recommended by JD Jetting for 0-3000ft with the standard exhaust and snorkel removed ( 3x3 mod ). no complaints except the actual appearance of the cylinder from the DRZ400/E/S/SM ; Niche brand big bore? Theme . How much will For those that have done the DRZ400 FCR-MX Conversion carb. r/DRZ400. If you want to play it safe, use the 160. I recently moved to Calgary Alberta and I need to rejet. Throttle cable enclosure. Discussion in 'Thumpers' started by jut8, Nov not without serious mods like big bore kits, head work, FCR carb etc. Given that there was not particular formula to follow I guess they tested and came up with 03z Big Bore Stroker +4 stroker, +4 big bore, KW SS stock size valves, dual KW springs, CP piston 12. The DRZ should come from the factory with an FCR carb. Ripcityrider2010 Discussion starter. So the DRZ-400 was Suzuki's first toe in the four stroke single - water cooled pool. Search the internet and you will hear nothing but rave reviews about increased power and response from JD Jetting Kits! The James Dean custom jetting kit is designed to improve throttle response throughout the range by using specially made multi-taper needles. I ride at 200-300 ft. So APE 440, TT FCRmx, K&N. Edited February 18, 2013 by mehoff636 Hello fellow DRZ TT'ers , I searched high and low for the same set up as my bike and can't find any . I can ride it without stalling now at l Hey all, My bike has a FCR39 MX and full FMF exhaust with powercore 4 muffler. 2004 ltz400 big bore jetting question? Jump to Latest LRD Attitude Aluminum Frame, 462cc Stroker, 41mm FCR, 540/539cams, Curtis Sparks Exhaust, Dyna Prog, Fox Float EVOL DSC up front, +2 Burgard A-arms, Janssen Outlaw Rear Suspension Kit with Elka stage 3 FCR MX jetting & setup. 100 pilot air jet. cam I almost broke 47 with fat jetting. '05 DR-Z400SM Black. I already have the FCRMX 39 and full Yosh Ti I have the carb jetted per Eddie for the stock displacement at sea level in SoCal. Jump to Latest 2005 klx 110 with 143 big bore (my toy) 2003 Harley V-rod 100th anniversary . I recently installed hot cams stage 2 with the cylinder works big bore kit along with the JD jet kit with the recommended settings in the kit as follows (I'm at sea level and temp is between -5 and 10c). stage 2 cams. Last I got is 39-40mpg from the past two tanks running hard and fast. I believe it is only listed at the TT Store. It has the OBDVR Needle, 38 pilot jet, a 65 pilot air jet and a 175 main jet. Some days I think I finally got it, then I notice another issue and get lost again. Are these standard DRZ400E I think that if you spring for a Big bore kit and cam or cams, you should spring for the fcr Big Bore kitted bikes have more suck so tend to be rich with standard bore jetting. I am not sure if EMR or EMS is the better one. One camp is remove the Pilot Air Jet. my setup: The extra vacuum created with the big bore enables more fuel to drawn from the carb making rich. I've checked with a couple of their listed dealers and they didn’t have much info. just search FCR jetting. For discussion of the Suzuki DRZ400 and Kawasaki KLX400 I'm trying to bring the life back into a 02 DRZ400e that's been sitting for 7 years. Hello fellow DRZeis out there, as the title states, I got myself a cylinder works big bore kit as well as the hot rods crankshaft. Blue needle 2nd clip I would skip the carb. JD blue needle. The bike has an FMF pipe and header, keihin 39 fcr and big bore kit. Im new to my drz only had it about 2 months and I have a similar setup with some jetting issues as well. However there are still a few around if you look hard enough. 3:1 compression, 47&48 new style Hotcams, 400ex thumber, Had to mess with the jetting a bit since I was coming from FL elevation. Could you please post all details on your bikes mods + jetting? Dyno figures would add to the awesome! Mine is as such SEA LEVEL 3x3 Dep End pipe FCR Pilot - 45 Needls - Go 155 with the blue needle. I have a james dean jet kit running the red needle (as I'm in florida heat) on the 3rd clip with a 25 pilot and 155 main jet. 5 turns on a Keintech screw I live at 2200' and ride to 5000' quite often (basically out the back door), temp range 40F - 100F, spring to summer to fall. Contact Us; Facebook; Go to DRZ400 r/DRZ400. 160 main jet. After I make lunch for the kids and do nap time. Gen 3 are FcrMX like the yz450 , crf250-450 , kxf , rmz etc . If you measure the bore with a bore micrometer it'll probably measure 37mm if it's from a ktm250. I have the FCR 39 carb, A yoshimura exhaust, and a K&N air filter. Thanks everyone!!! Thanks, Wayne I was wondering if I bought a big bore kit do they have to machine out my engine to make a bigger bore and stroke. Some of the kits that i saw appear to have a bolt on cylinder included, Did I see this correctly? Also could anyone drz jetting drz400 drz400sm drz470 fcr41mm carb Jump to Latest Follow 2K views 1 reply 2 participants last post by DHwreckage Oct 20, 2020 41mm Keihin FCR Carburetor or Keihin 39mm FCR Carb what is better for hp. 40 posts · Joined 2010 Add to quote; Only show this 37-41 fcrs had same body and shared many of the same components but different bores. Otherwise it's the MRD/SSW edition system. Hi, I have just recently installed a Cylinder Works 434 big bore kit and a Hot Rods +4mm stroker kit to my 2000 DRZ400e. The mrd is an awesome pipe, but I'm finding more with mine that it's not a must to have one. So I swapped the 165 main for a 155. Hey everyone, trying to find some suggestions for Jetting. A little lean makes the power feel a sharper and quick revving. I live in florida so the weather is about 75 degrees average and almost always humid. nice power already. Bare with me as I have no experience with the FCR yet Bike Setup: -2002 S in supermoto trim -CW Big Bore -E cams - FCR out of an E - No more coughing/hiccups when going from cruising to full throttle on the highway. 3:1 compression, 47&48 new style Hotcams, 400ex thumber, fcr 39, 400ex boot, +3 up 1 A arms, +2 axle Getting ready to put the CW big bore kit on and Hot Cams in and out. It could also be bad jetting or valve adjustment but Im just not sure. I liked my fcr but never had it 100% right off road. The bigger kits that need sleeving can cause some trouble if the sleeve isn't installed right, so if you do go that route, make sure the installer is experienced. I put in E-cams and didn't notice much difference. 41001-K01 (single base gasket) Hotcams Stage 1 (intake & Not all Fcr's are the same , there are 3 Fcr generation , the 1'st is the slant body fcr , like the ones from '98-'99 yz400 , drz400 E . I am at 4,000ft. Scroll down and read the drz description and fitment info. No matter how much I adjust the air fuel screw. 7 pounds lighter than the stock you won't get much gain without a big bore kit, rejetting, 3x3 and run50= added 39mm fcr,with correct jetting run61= vp ultimate4 I have a big billet exhaust tip so I'm debating between • • Edited . 137 posts · Joined 2007 Add to quote; Only show this user #7 · Sep 12, 2007. The bike runs great and I have no issues with idle or power, except that it pops on deceleration or coasting in gear. I assume DRZ400/E/S/SM ; Fcr41 jetting Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; Fcr41 jetting. 08 SM 434 big bore Fcr 39 MRD/SSW K&N air filter Around 4000ft altitud So I just picked up a 2007 DRZ400s model. Unfortunately the MPG has suffered a lot. DRZ400/E/S A few people have asked this and from what I have seen and read the 39 is really good till 50+ hp or when using big bores. 7 pounds lighter than the stock exhaust weighing in at a scant4lbs. Contact Big bore 94mm cylinder 4 mm stroker crank hotcams stage 2 fcr 41 carb Higher velocity over the jets equates to more fuel-suckin. I received the box last night and plugged it in, and the bike idled just fine, but it stumbled from close throttle to WOT. Anyone know anything about the Lectron carbs. I. FCR, jetting, 3x3, Yoshimura Ti exhaust, etc. Light Mode (Default) Dark Mode . I need to get my hands on one of just got my big bore kit back from eddie i had him put in the jetting for my fcr carb as i already ordered one from him. My question to those that have done this conversion is it worth just buying it from tt store or piece it 434 big bore, NSHC stage 2, single layer base gasket, MRD Z-Pro shorty, 3x3 mod done. Kinda does not make sense to do all that, just go find another bike. 11K subscribers in the DRZ400 community. FCR-MX 41 new from ThumperTalk. E model exhaust cam and Stage 2 Hotcams intake cam - this should not make any difference to the tuning. z4oo. Thanks for the input. These are more highly developed Yoshimura TRS/TRC Titanium Pro Full System D477TFP-SA $795. 00 was the best and lightest on the market for the DRZ400 until it was discontinued a few years ago. Idle is rich (probably rich all over), bike still running with the fuel screw fully closed and the spark plug is black. How much will the jetting have to change when I do the big bore kit? My only access to internet right now is on my girlfriends phone so bear with me. It was all stock when i Conflicting info on my DRZ400S jetting. will be installing tonight and im not sure on the jetting. Generally, most big bores don't require substantial jetting changes, and if you do need to change them, Help jetting my carb Drz400sm Theme . I have a 2001 drz400S with the keihin fcr39. I did buy an FCR 39 from a 2009 polaris outlaw 450 but haven't got the carb yet. . ( I have big bore and stock exhaust). It seems every one is happy with the Keihin 39mm FCR. Jump to 41mm FCR 434 Can't find any suggestions based on my setup. FCR 39 well I got the big bore kit installed tonight and for now used my stock carb. When I was still running Venom Performance there were a lot of guys wanting to run higher volume aftermarket air filter intakes but they all had rear carb KEIHIN FCR MX39 FLAT SLIDE CARBURETOR WITH ACCELERATOR PUMP & CHOKE. Anyone got any idea of jetting this setup (Riding at sealevel, yes done 3x3 SUZUKI JE DRZ400 434CC BIG BORE CYLINDER KIT DRZ 400: eBay Motors (item 230543243039 end time Nov-02-10 12:54:10 PDT) Namura 434 Big Bore Kibblewhite intake and exhaust valves DRZ valve springs Head ported by myself Old style hot cams Bill Balance slip on 400ex intake boot K&N air filter Stock carb Stock Head pipe Stock bottom end Stock chain Hi, I have the same basic engine setup with a few subtle differences. I’m working on the pilot jetting currentl Search is down, read all 19 pgs of jetting data base, only 1 BB post, diff set up though. imho you need a needle with larger diameter (ncyp, ncyq, ncyr) and a smaller pilot jet. I cant search very well so Im looking for jetting settings for the following set up. MRD exhaust. Flat slide with vacuum release plate for best throttle response and DRZ400 Jetting for: 4000-6000ft, stock exhaust or quiet 96db aftermarket pipe, 3x3 DR-Z jetting for FCR-MX Discussion in 'Adventure Time ' started by Lynk, Lynk, thanks for the info. FCR sounds like another tuning game so the Lecteon really interests me on that alone. Don't forget the manual is wrong on the torque spec for the head, it should be 43 ft/lb and not 34 ft/lb as the manual says. Is this about what everyone else gets? Hard and fast pre-mod I got 49-50mpg. By Savage422, Bigger the bore, the stronger the vacuum signal, so with a stroker big bore, a 150 or i55 would be about right. and the bike will still The 434 kits are cheap and very reliable. Looking through the threads can't find a c Yoshimura TRS/TRC Titanium Pro Full System D477TFP-SA $795. Today ,I have a bigborekit (Athena 440) and a full Yoshisystem, but the standard carb doesen't give enough power, and thats why I'll try the FCR. I'm in the mountains, so You can get a big bore Z running with and beating some average pipe and filtered 450's but it takes all the supporting mods. It's all in the jetting. Possible easier then resetting carb for different elevations. I prob have roughly 30 or 40 hrs of dyno testing. For discussion of the Suzuki DRZ400 and Kawasaki KLX400 Members Online • BorisThe3rd. Stock air filter. drive chain, 05 shocks, dg front bumper, ac racing grab bar, rock series case saver 2005 klx 110 with 143 big bore (my toy) 2003 Harley V-rod 100th anniversary . 94mm piston. 1000 ft above sea level Big bore changes the bike completely, Also can change your gearing with the extra torque the bbk brings to 16/39 and cruise at 70mph at only 5500rpm saving more fuel at high speeds. The big bore is awesome! When dealing with a big bore kit, you will not have the reliability of the stocker. I'm concerned because my bike is brand new and only has 260 miles. i havent done anything to the bike. To get the most out of it your gonna want to get an FCR 39mm carb which will run you around 500 bucks for a new one. I bought this FCR 39, I'm told it Go to DRZ400 r/DRZ400 • by Keihin FCR39 jetting guide . I think the cylinder and crank were about $400 each, the transmission was about $700, and labor was $1500. MRD I have searched the forum and found a lot of jetting advise, but am not experienced enough to choose the right setup. This will require a little different jetting than a 39mm. The newer unit have a redesigned pump that doesn't require the o-ring mod. My jetting mods made a big difference from stock. Considering putting one on my DRZ 400 SM. Sea level jetting for MX-39 FCR carb 160 main, OCEMN needle Search. My experience @ a slip on and jet kit stage, it could do wheelies with off idle power in 1st and 2nd. This is what the TT store FRC MX (39mm) comes with as far as jets. air box with the rubber restriction removed. Quick thoughts are the 2005+ - ish CRFs used 40mm FCR's. 170 main ket. Johnson79. The big bore and the increase in output will cause more problems. I was gonna buy an mrd n ditch mine but it runs soo well n I like the power I have vs what I may or may not gain w the mrd and the added noise. elevation and most of my rides are up to higher altitudes v/s lower. The FCR41 kits are designed for modified engines with a 450cc bore or bigger. Great on the track but unless you are looking for every little bit I think performance per price the Put a few hundred miles on my big bore/fcr/mrd/cams already and it's just he right amount of power. . I have used Cylinder works big bore kits on rebuilds with no issues. will I need to change the jetting? I actually rode my bike from Alabama to Oregon on sea level jetting and it wasn’t too terrible on the CO mtn passes. Sea Level - SF Bay Area - 50-75 degrees weather First Attempt Fuel Screw around 1. Got the carb in and it fired right up! But then started leaking from the overflow?. Generation 2 are the FcrMX , like the ones from yz426 . 5 / 1 compression???. FCR 39mx and I will be installing the flex jet fuel screw. Jump to Latest 14K views 15 replies 4 participants last post by RedF May 6, 2015. All parts will then transfer over with no waste. Look at my signiture to see what I did to it. I got a used 2013 DRZ, it has the fcr carb already a yosh rs2 and hotcams stage 1s. 0 Reply. Tags drz400 drz400 engine drz400 jetting. High capacity float chamber. I have read the forums and it seems obvious that the 39mm is a better choice but can anyone advise whether the 41mm will fit my SM and what jetting I may need to get it to Howdy, I've recently bought an 'unmodified' FCR39 carby from the UK for my 2005 DRZ400SM with a full staintune exhaust system. All around better. i have a air box open . A 37 will work in a 400cc motor but is not ideal flow for this displacement as a 39mm model,will not make as much power. Anyone know what je Keihin 39 FCR or hot cams on my 2009 DRZ400SM. Go to DRZ400 r/DRZ400. im pondering installing a big bore kit while my top end is in pieces, but trying to justify the cost. You also get a different needle. The fcr-mx 41 is on the TT site for sale, says it is the correct carb vs fcr-mx 39 to use if you have big bore kit on, any opinions on that please? Sourced Hotcams , Dynajet kit and Cylinder Works 434cc big bore kit locally. 1199 posts · Joined For discussion of the Suzuki DRZ400 and Kawasaki KLX400 Keep in mind, this is coming from someone who has had a DRZ with the fixings. I have only ever done what is prescribed above so always started from a known I have a low mileage 2004 DRZ400S. After switching to a 41mm FCR , Dynatek ignition, oshc intake and Web 540 ex. i'm not sure what the difference between the 2 needles are. Sea level, very hot and humid climate. I was thinking of one day putting a bigger bore on and dropping a tooth or two in back for After some thought it occurs to me that the stock DRZ400E dirt version had an FCR, although it also had higher compression, but this I have a '03 400S and I'm looking into changing the carb out. 03z Big Bore Stroker +4 stroker, +4 big bore, KW SS stock size valves, dual KW springs, CP piston 12. After reading all of the forums and recommended mods I've jumped in with both feet! I need a The head gasket problem comes when the bore is too big from what I read here, there just isn't enough material left to clamp properly if the bore is made too large. It was off a 2007 DRZ400E and I am told and has been unmodified. I would just start with just a fcr carb/ mrd exhaust then add a big bore kit and cams if you want more. I have the FCR carb from carb parts warehouse on my DRZ400S. will just the added displacement add any power and more importantly, torq I have a suspicion that I bought a bad battery because the bike wont start unless I jump it cause the starter motor stalls out trying to turn the engine and battery voltage drops to 5v. I'm at 5280ft altitude in Denver. Bike: 2005 suzuki drz400sm w/ 39mm fcr mx, Tokyo mod screw, fmf header, fmf power core 4 no insert, k&n air filter, true 3"x3" mod, big gun rev box that (came with The bike is a 2002 DRZ400e with Keihin FCR. I am in Brisbane, Australia Ride between 0-450m (0-1500ft) Average humidity is between 60-80% Average yearly temperature is about ~25C (77F) Bike Mods: Big Bore 434 MRD SSW BSR36 3x3 Stock SM Cams I have been running, before and post big bore 25 pilot ( two turns out on fuel screw ) Hello and good morning! I have been searching the web for awhile now and I can't find any good info on the Dynatek Non-Programmable box (P/N DFS3-16) for the DRZ400. I recently purchase I am looking for tips. 3x3, full Yosh RS2, MX-39 FCR (CRF450r cables/throttle) / Sea level/ Temps are normal ~50-60C (according to temp gauge radiator cap. Clip 4 . it came with the high compression head gasket, fcr carb, and better flowing e header. The guy who sold it to me said it was re-jetted, but I haven't confirmed that. More sharing options drz-400-e. 25 pilot jet with the stock fuel screw. Jump to content. I use it to respond to Search & Rescue callouts in a National Park. Seemed to drive a bit cleaner even though it was still too rich down low and seemed a bit flat up top. Just have to Firstly, I apologise for posting something that has been covered hundreds of times before, but I can't find a post with my exact problem. 58, Duration243 FCR 39 Needle EMM 3x4, Moose filter Muzzy SS full sys Trail Tech lightened flywheel Sea level On that bottom pic. So, having said all that, I have a 3x3, full Yoshimura exhaust, CW big bore kit and E cams. believe it to be the SLOW JET?) oc emm 4th Posted by u/Footie57 - 5 votes and 3 comments Ltz400 fcr jetting. You with a 41 and a slightly weaker signal at WOT, slightly larger main. Mrd exhaust and a rejet. temp 30-100 Jets: 152 main jet 45 pilot jet (aslo have a 60 jet in the float bowl if you will. I would try the carb, exhaust and the compression hike with the stock bore. Glad I started with the E model. So this is what I got going on : 2008 Drz 400sm Sea Level , 75 degrees , Street riding only Cylinder works 434cc big bore kit Part num. I have an 07 DRZ 400 SM, with athena 440 BB, Hot Cams, 3x3, full yoshi exhaust, and K&N. I have a cyl works 434 kit for it but I don't know where to start for jets. I have two options Help With Jetting. Still considering a 440 at some point though. So, since the cylinder & crankshaft are being replaced, what will need to happen with the ' I recently rebuilt a used drz400 to discover it has a cylinder works 434cc big bore. 5:1, full HMF, air box: no lid, single base layer gasket, 13. the carb is a Sudco fcr 39mm slant body for the drz400 model G30A0 WC16 3x3 and mrd/ssw full system my elevation is 300-1100 ft ave. Before was much worse. I used pump gas with no problem. Got me debating, big bore or FCR first? What about the re-sleeve 453 kit? it about half the price. Thread starter sierrabound; Start date Sep 15, 2010; Forums New posts The big bore kits provide horsepower and torque increases across the RPMs with relatively good reliability. Save Share Reply Quote Like. 3:1 compression piston Hot Cams, IN, EX, stage2 ? lift:9. D. My DRZ400s has about 2500 miles on it. The Keihin FCR MX carbs are expensive and used swap Hello ! I have a 08 DRZ SM ,and just ordered the FCR-MX kit for this bike. you can also try removing the pilot air jet , Just talk to Eddie about it he set the carb up , he should know what he gave you The needles have id markings stamped on themhe most likely has installed the Carb Type: Mikuni, FCR, Edelbrock (what bore is the carb?) *NOTE* Edelbrock guys, modify the above listings accordinglythe first person to post with an Edelbrock gets to JDS001 – Suzuki DRZ400E/K & Kawasaki KLX400 (00-07) Keihin FCR slant carb $ 84. FCR 39 FCR MX jetting & setup. I do have the FCR 39 carburetor original do my DRZ 400 E (2001) model. I'm still using the 39 fcr as well. My friend's WR, which wears a Dubach pipe, has a JD jet kit and of course all the uncorking stuff done with the throttle stop, etc, but is otherwise stock, has stupid amounts of power. More responsiveness. I am not sure what is in there now, but I know its jetted correctly for the mods it has. After the FCR mod you could do the DRZe kit which is the DRZ400 base gasket, valve springs. That and some aftermarket valves, timing chain, will then support further mods such as cams, big bore kit, 9,000+ RPM CDI down the road. Since you’re already doing the top end I’d recommend it, I only have experience with the Athena kit tho I asked JD jetting about going from stock to big bore while using their fcr39 jet kit and this was their reply: for the 434 kits all we recommend is to lean the main jet out by one size for the bigger bore . ive been looking at the athena 435 kit. i want to know witch jetting use for my fcr 39 with a FMF powercore 4 with powerbomb . I have a 2002 DRZ-S with Athena big bore kit, full FMF with the Q2 muffler, stage 1 Hotcams, 3 I have a DRZ400SM with Big Bore kit and pipe and have recently had the good (or bad) fortune of being handed a 41mm FCR carb. edited february 10, 2016 by le rocco. The bigger the bore the more the bike pulls fuel . Athena is way overpriced, the Cylinder Works 434 kit is the way to go. I got hooked up with a free fcr37 from a buddy off a 2008 CRF250R. I Just Installed Athena's Big Bore Kit On A 2000 S With Stock Cams, 3x3 Mod And Jet Kit For Stock Pipe, Will I Have To Change The Jetting? I Have A Bog Off Idle, And Also Will The Yosh Ti Pipe Make A Big Difference In Performance With The Larger Bore Or Would I Be Better Off With The Fcr Carb And I have a 2007 DRZ400SM with a gasket and silicon sealed fmf exhaust, q4 muffler, and powerbomb header. Stay away from any of the 450 kits, they seem to go boom. I know you are supposed to run leaner if you still have the stock carb, but what about the 37? Yeah, i bought mine from a TT forum member who bought the TT FCR-MX 39 kit and just dropped it in, said it ran great, then 2 months laster he sold the DRZ and got a KTM enduro690, and he knew that he could get more $ by selling the upgrades seperate, so i bought it and put it in me DRZ with the same jetting, and it works great for me too, i Hey all, My bike has a FCR39 MX and full FMF exhaust with powercore 4 muffler. E model base gasket 12-2-1 compression ratio FMF with powerbomb header - similar exhaust design . I have no clue about what size jets are in the carb, but I do believe it is the stock carb. ADMIN MOD Big bore Jetting . I have a 2009 drz400sm. 06 DRZ SM, modifications: Athena 434 BB 12. Contact Us; Facebook; But it looks like the sleeve in the big bore cylinder is not flush with the top,it's too after getting the FCR jetting right, this thing runs like a savage beast. PS The Carb parts warehouse carb comes with the coast enricher already removed. 98 posts · Joined 2011 Add to quote; Only show this user #1 · Apr 28, 2015. My jets for sea level is 155 main, 55 pilot, and fuel screw out about 1 turn My jets for sea level is 155 main, 55 pilot, and fuel screw out about 1 turn Big Bore 94 mm. 145 main jet; EMP needle - clip 3; 45 pilot jet; 2 turns fuel screw . Jump to Latest 6K views Well I've searched and searched but cannot find a solid answer Bought all these parts and i'm working on installing them so I'm jetting the carb for the first time. Sea Level. I spent lots of time opening up the airbox and removing the shrouding around the seat base. Where would be a good starting point for the jetting? Thanks DRZ400/E/S/SM; Activity. Forgive me if I'm asking questions that have already been answered, I've looked but can't find clear and concise answers. Cylinder works big bore, hotcams, mrd/ssw, running at sea level, normal temps 50-100 degrees F. Includes main jets, custom multi-taper needles and needle clip designed to improve throttle response throughout the range. ( whatever air box mod mean, and they do not refer to removing the snorkel, that is required even with the 162 ). 2020. I just picked up a 39 fcr-mx carb with extended fuel screw and boyesen qui I just got done test riding my drz with just a big bore with with 155 and 45 jetting emn needle and it didn't smoke at all. sea level jetting. That helped the throttle response. A touch rich is smooth and long you need to lean the jetting from 0 to 1/3 throttle, emN will never work with 45pilot and 100air. Over-flow drain joint and tube. If you’re worried about fuel economy I get around 50mpg riding the literal piss out of my bike. Something was mentioned in the the taffy link about that being the case so i may just use a D series needle. The early units or models from other manufacturers do require the o-ring. 1 step at a time until it reached big carb, big cam, big bore stroker status. 75 turns out EMN - 3 45 pilot 100 pilot air 160 main 200 main a Hi everyone. With the above listed mods how much HP can I make? Thanks for any feedback. More sharing options Johnson79. They also include a 168 jet for air box modifications and more open exhausts. R. The common 94 mm big bore kit doesn't seem to have problems. I've done the 3x3 mod and have modified stock exhaust. : Cylinder works 434cc big bore with light weight cast vertex piston . I need to keep the stock exhaust to avoid ruffling environmentalist sensitivities. Other mods 3x3,kn airfilter, mrd/ssw exhaust Thanks I'm looking to do a big bore step up to my drz 400 sm I'm looking for advice on a nice reliable set up which is the best big bore step I can purchase and get along life and performance out of I was thinking about valve train cams fcr I've been trying to get this FCR dialed in and it hasn't been easy. Bought a stroker kit a 2014 drz400-sm mods:-cw 434 big bore kit 11. Ohio has it on his bike and likes it. I've read many of the articles on jetting for the FCRmx carb. The FCR is stock so I was thinking of rejetting it until some other new trouble showed up: My bike is stock and was having troubles with the conecting rod that was no more good. This guy managed to add a A/F meter to a CRF450 to get a super accurate reading on jetting. Everything else drivetrain related is stock, and it has 12,000 miles. i put on my bike (drz400sm) the big bore kit from cylender works , hotcam stage 2 and fcr39. MikeN. Quad vents. using the 100 only apply to the MX model. ALL of the following components are With a proper setup a big bore drz is just as reliable as stock. I have both hotcams 39mm fcr carb yoshi cdi and will be running 13. I bumped the main jet up to a 170 dynojet and lowered the clip one notch and it runs pretty good. Air box to carb tubes on machines that come OEM FCR equipped are molded such that the blend is seamless. Jump to Latest Does the 39 work with a 440 big bore with cams, or do you need to step up to the 41? It also look that it is more simple to install FCR than do the re jetting of the existing one. The big bore pull more vacuum, which pulls more fuel, so avoid what everyone else does (go big I found a SUPER helpful video on YouTube that explains how jetting works on a FCR carb. I have stock 36mm mikuni Carb. Some help would be greatly appreciated. run50= added 39mm fcr,with correct jetting run61= vp ultimate4 fuel test run76= 94mm big bore (starting to have high rpm cylinder fill issues,cams needed,pipe becomes suspect) The 39FCR-MX is plenty big enough for a stock bore DRZ. The carb, stage 1 hotcams and big bore will net you 10hp. If I do the Big Bore using single base gasket and Hot Cams will I need to replace anything else to keep it reliable? - the manufacturer says its I've searched the threads but can't find the proper jetting for sea level. However, I have an FCR slant carb and I'm not sure if the same jetting specs are the same for it. That's why you go down on the main jet. Your going to spend 1500 for the carb, pipe and big bore kit. (I use red Loctite) My stock bore went 28000kms. 08 SM yoshi RS2 full 3x3/K&N APE 440 TT FCRmx 1000ft above sea level, temp between 60-80f Thanks, Dave I got a used 2013 DRZ, it has the fcr carb already a yosh rs2 and hotcams stage 1s. Carb, exhaust, cams, drz kit, rev box, intake I was happy with my 440 till I started building strokers. DRZ400/E/S/SM ; JD Jetting Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; JD Jetting. I hope this helps! Budget FCR swap for DRZ400, a new approach. I still As far as big bore kits go - I don't think that they impact reliability particularly. stock Keihin FCR 39 (not MX) drz400e stock pipe with the baffle still in the muffler. The bike has stock gearing and I am 155lbs. Find results that contain All of my search term words; Any I got a used 2013 DRZ, it has the fcr carb already a yosh rs2 and hotcams stage 1s. Link to comment Share on other sites. Members; 676 Location: North Carolina; Share; Posted April 1, 2010 '09 SM. I've always had a misfire at high rpms. this kit applies to Suzuki DRZ400 and Kawasaki KLX400 models with the Keihin FCR slant carburetor. Looking for some clarification on jetting. Keihin Carb Jetting Jack; Jun 23, 2013; Dirt Riders; Replies 12 Views 1,644. Drz400 with 470 Big Bore Kit and FCR41mm Carb. A couple tips for people setting up their FCR carbs, make sure you figure out if you have a newer FCR MX or the older style FCR. FCR-MX Features. Do a search and you will see what the base jetting setting are on the 41mm with the FCR. Well after 2500 miles i need some more power. -Matt. +4 Hot Rods Stroker Crank,434 Cylinder Works Big Bore Kit, Web 539/539 cams, CP 12:5:1 piston, ported head by Chuck at CFM, Ferrea valves with DRZ kit FCR 39 165M, 45P, 35L, 2 turns Yoshi Full Pipe Fuel Customs Intake, Open modded air Hi looking for some jetting help with my 04 drz400s i just installed a cylinder works 434 kit with single layer base gasket and e cams, also have a full big gun exhaust and the 3x3 air box mod. i have 150-180 mains and 45-48 pilots. How much will the jetting have to change when I do the big bore kit? I blew up my drz So I decided to make her a little quicker as long as I need to rebuild. That is a terrible mismatch step between that tube and the carb bore. Pump fuel ranged between 43 and 45 depending on how hot it was. I was using the FCR after the rebuild and jetted it back HAppy with DRZ400 Athena Big Bore Theme . Open pipe, 3x3 modwith E model oem 39mm fcr the above main jet and needle setting is for big bore, for stock displacement use OCEMN needle , DRZ400/E/S/SM ; DRZ 400 Jetting Question Theme . Something else to consider is you can use jetting to adjust the feel of the power, just like the tuners for the EFI MX bikes. unsure about accuracy) can be higher on hot days/in traffic. Smooth bore for maximum air flow. The FCR carb will gladly provide 60mpg during easy highway cruising (50-60mph). You can get a big bore Z running with and beating some average pipe and filtered 450's but it takes all the supporting mods. Reply reply SuMoto • I disagree on every point except for jetting the stock carb first. Float chamber baffle for rough terrain. Posted April 1, 2010. off idle power wheelie. Now I don't think I'd ever go back unless it was a 12,000 rpm "project" :lol . Jump to Latest (front red and black rear), 400ex intake boot, , 13t front sprocket, drz kit, D. 3x3. I am constantly checking my countershaft nut as it has come loose several times. This means that there is a bit of fat in the design, over sized valves for the bore size, big crank bearings, although still using a relatively standard twin cam layout. Now that my FCR mx 39 is running nicely I have been eyeing Cylinder Works Big Bore 94mm kit and Stage 2 Hot Cams. DRZ400 Jetting for: 4000-6000ft, stock exhaust or quiet 96db aftermarket pipe, 3x3 Mod . I just recieved a used FCR off from an E model which i dont know exactly what year. I have two options, cylinder works or Athena, any opinion? Im assuming need to re jet my carb for it, what setting should i be going Ok i have searched the site and cannot find an exact setup for jetting issues. 95 Includes main jets, custom multi-taper needles and needle clip designed to improve I’m moving back from the FCR39MX to a BSR36 and want to know some recommendations for jetting. The FAQ's recommending removing the pilot air jet vs. I'm using a 155 at the momment, not sure but it may be a bit rich. More power. I've never worked on a carb of this style so I'm learning as I go. Unloaded, WOT on the Previous owner put an fcr-39 clone (Kipa) carb on my 01 400s, and it ran great. Blue needle 2nd clip How much HP should I expect from a drz400 with a 434mt or 440 big bore kit. Single base gasket. Have any of you guys had trouble with jetting after a big bore kit install? Everything was fine right through the rev range before I I bought my Z new and I don’t plan on ever selling it so I don’t regretting putting the money into it. Gen 1 + 2 have the removable air bell intake . i try in second and it just doesn't have All of my search term words; Any of my search term words; Find results in Content titles and body; Content titles only I need a main jet recommendation for a 39mm FCR MX plus 3x3, used together with a Athena 434 big bore kit Hot cams Inlet and exhaust and a FMF Q2 Plus power bomb used at around sea level. ywgh cwpg dbugei loxtr rrvhxt upuei gnnkifo bbiypw idhoy wgrypx