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Found 24 results

  1. Hey guys, i just bought a Yoshimura RS-2 slip on with an FMF header for my DR650, I realized that they wouldn't fit together. Do you have an idea how can I make these fit together ? Thank you !
  2. Selling my DRZ400SM and also selling off aftermarket parts. Is there classifieds specifically for the DRZ400? Items I have cant have more than 280 miles on them. They are ALL essentially new. 1. Seat Concepts DRZ400 seat. OEM packaging. $200.00 2. Yoshimura Street SS full system. O2 bung for wideband, new gasket. OEM packing. $400.00 3. PM Luggage rack with optional wide pan. OEM packaging. $120.00 All items are PP F&F plus actual shipping. Fees suck. You can provide you own shipping label if you'd like. Send me a PM if you would like to buy. Thanks!
  3. Hey DRZers. I have a question for those with the experience and knowledge. I have two DRZ400Es('01 and '02). Both have full aftermarket exhausts with spark arrestors. The 2001 is street legal and the '02 is not, as of yet(fingers crossed), I'm in CA. On the '01 it has a full Yoshimura Comp exhaust and I am wondering which set up better or the differences in performance characteristics. I can't just jump on each bike to do testing as the '02 is not registered yet because I am attempting to get it street legal. So I was wondering if anyone on here has first hand experience and knowledge of these two systems on these bikes. I want to take the best off both bikes and then sell off the other once the '02 is street legal. I will note that the Yoshimura system was probably put on the bike back in 2001-02 as the bike was fully set up for desert runs with ProCircuit Suspension tuning, Tokyo Mods Carb work(which was crap) and a Baja Kit light set up. I state this because the Yoshi system is old and must be straight from the designs they made for Mike Kiedrowski and Suzuki's eduro team. Also, the header on the Yoshi is about 3cm larger on the OD than the T4. Here are two photos of the Yoshi system. The T4 muffler is significantly smaller in diameter and rides higher up next to the fender. I'm planning to make sure one of the bikes if fully buttoned up tight for a first time entry into the Barstow to Vegas race in November. weight is of some concern. Thanks guys!!!
  4. Hello All! I'm a new member and long time lurker and excited to get back on a bike after many years. Very grateful for the wealth of information shared here and I've found a DRZ400s with lower miles (~3k) for sale that I'd like to purchase and learned it has: -Dynojet Stage 1 Jet kit -3x3 mod -Yoshimura full exhaust -Stock apart from that I've done a bit of searching on here and read that the stage 1 kit from Dynojet is meant for more stock configurations and that the Stage 2 jet kit is recommended for configurations with the 3x3 mod and full exhaust. I can fix this after buying the bike (and may even start fresh with a new James Dean kit). My question for all of the gentlemen here with more knowledge and experience than me is - Should I be concerned that the wrong kit (stage one) has been run on it until now considering the mods it's been run with (3x3 and yoshimura full exhaust) instead of the correct stage 2 kit? Has it likely been running too lean/rich and if so, should potential damage be a concern of mine? Bike is near sea level, has less than 3k miles and mostly trail ridden (if this info is relevant). I like the bike and just want to make sure I choose the right one. Thanks in advance dudes.
  5. recently installed a full Yoshimura exhaust on my 2019 crf 450L and after a few rides I've noticed my air box has begun to melt and I have since had issues with the bike overheating. If there is an upgraded radiator and potentially a stronger air box anyone knows about or tips to avoid these problems it would be greatly appreciated
  6. I am having trouble getting the original inserts out of my Yoshimura RS-9's. Has anyone put the sparky's in these and had success? I bought the spark arrestors from Yoshimura, but for some reason cannot get the original inserts out to put in the spark arrested inserts. When I remove the bolt and nut, the insert doesn't budge at all. These pipes have fragile carbon end caps and I do not want to damage them by using force to try and pry them out. Here is the back of the pipes for reference. Thanks in advance Chase
  7. 2013 ktm 450sxf rode it this past weekend runs fine till the decel and start popping but when I pulled my exhaust to pull my back shock out for a stiffer spring I put my finger in the head pip and it's black like jet tuxedo black and was thinking how could it b lean piping if it's running rich
  8. Hi everyone, I am curently building my bike for light adventure riding. I am making a contraption that I would like to call a rally fairing. I am showing you what I have made so far. For the build; - oversize GPI racing radiators - oversize gaz tank - fuel pump - swapping the speedometer by a vapor - custom made bracket for fairing - fiberglass fairing/windsheild I have not adressed the wide ratio issue since I just completely rebuild the engine last winter. I got a 39 teeth sproket for highway speed. I have no experience whatsoever with fiberglass, any input would be apreciated. Thanks for the interest.
  9. Hey all, I know this is a long shot but I’m chasing a Yoshimura full exhaust system for my recently acquired DR-Z250. I’m told it’s no longer in production by my local dealer and after trawling online I simply can’t find one, so I thought I’d turn to the forum! If anyone has one that they’re willing to sell or has a lead on where I could find one, please let me know! I believe the Yoshi part number is 2160500. Thanks everyone!
  10. Hello Reader, I've been struggling with this issue for a year on 2005 Suzuki DRZ 400s. Configuration: Mikuni BSR36 carburetor (rebuilt 4 months back), brand new top end, new stator coil & battery Modifications: 3X3 air box mod, yoshimura slip on rear exhaust, 4 gallon fuel tank with manual petcock, added kickstart & TKC80 tyres Problem: I took my bike to hilly trails near the Big Bear national park in California in Dec'20. The point where we parked our trucks and took the bikes out was ~3.5K feet above sea level. My bike was starting fine with just button start, and also running fine around the parking area. When we started ascending the trail, which would be another ~400 feet the bike started to struggle to keep alive and whenever i felt it go sluggish i'd give more throttle. This helped and the bike would ascend, but my confidence was getting eroded. Then at a point where there were rocks and i had to rev the bike to climb them the bike couldn't climb over, and as my grip loosened on throttle the engine died. I bump started the bike by using the decline, and turned around to start ascending. After a mile we reached a plateau and here i stopped and pressed the kill switch, to test the kick start reliability. Ok, so i pulled out the choke, adjusted the idling switch (but couldn't twist the fuel screw) and ended up kicking 15-20 times before it finally started. Now i just turned back to the parking area since i couldn't risk getting stuck in the labyrinths of criss cross off-road trails ahead. When i reach the parking area, the bikes back to perfect performance. I can button start it and ride it around the same area with no issues. What gives? I checked with my fellow rides, some suggested float valve, some said something else but i haven't really take the bike apart since then. So here i am, trying to figure if it's the jetting, air fuel screw or float valve or something else? Any help would be much appreciated. Oh, and wish ya'll a great riding year of 2021 ahead!!! Kamal
  11. I'm sure this has been beat to death, but I couldn't find a quick answer by doing a search... I have the Yoshimura RC2 full exhaust being delivered tomorrow. Question: The bike is brand new with only a few miles on it. Can I run the pipe on the stock jetting, a K&N installed and the snorkel removed from the airbox? Will it run okay? Will the plug burn properly? I do have the JD jetting kit and plan on doing the 3x3 cut out. Unfortunately I only have time to install the pipe before I leave for a trip. Thanks for the response.
  12. Here's a few pics of my play bike 2007 CRF100 Crf80 wheels (best mod by far) BBR 120 BBR Web CAM racing stage 2 cam Atx honda 3 wheeler carb 110 main, 38 pilot Yoshimura exhaust (noticeable difference from FMF) Air box mod with big filter BBR frame cradle Tusk HD clutch/ springs (which sucks btw) Stock100 front sorocket, crf80 rear sprocket (this gearing is great) CRF70 oem plastics Custom graphics kit 1 BBR front spring with fresh atf fork fluid ABC slotter pads front/rear Ebay special seat cover lol (last pic is all I have of new cover) Oh yea, she'll run with the stock pipe just fine to keep the noise down for my neighborhood. I tried many modifications with the DB Dawg and yoshi, but it made no difference. I'll post videos later. I absolutely love this bike. I'm 165 lbs, and me and my 2 yr old ride on it just fine. Future mods would be a works rear shock, maybe lightened fly wheel, and possibly ignition if it helps.
  13. Bought a 2016 Suzuki DR-Z400SM back in September, put two hundred miles on it or so and then bought a full Yoshimura RS2 system for it. Worked well for about 1,000 miles and then I noticed i have an exhaust leak where the header meets the engine. The local shop says the gasket has gone bad. I looked at the gasket compared to the stock one the other night and noticed the Yoshi gasket is just flat while the stock one has a ridge around the pipe. Anyway, I need to replace the gasket, and I was hoping to just take the stock one off the old exhaust and then put it on the new one, but they dont just slide off. So, how does one change a gasket? Thanks.
  14. Hello Readers, I've been struggling with this issue for a year on 2005 Suzuki DRZ 400s. Configuration: Mikuni BSR36 carburetor (rebuilt 4 months back), brand new top end, new stator coil & battery Modifications: 3X3 air box mod, yoshimura slip on rear exhaust, 4 gallon fuel tank with manual petcock, added kickstart & TKC80 tyres Problem: I took my bike to hilly trails near the Big Bear national park in California in Dec'20. The point where we parked our trucks and took the bikes out was ~3.5K feet above sea level. My bike was starting fine with just button start, and also running fine around the parking area. When we started ascending the trail, which would be another ~400 feet the bike started to struggle to keep alive and whenever i felt it go sluggish i'd give more throttle. This helped and the bike would ascend, but my confidence was getting eroded. Then at a point where there were rocks and i had to rev the bike to climb them the bike couldn't climb over, and as my grip loosened on throttle the engine died. I bump started the bike by using the decline, and turned around to start ascending. After a mile we reached a plateau and here i stopped and pressed the kill switch, to test the kick start reliability. Ok, so i pulled out the choke, adjusted the idling switch (but couldn't twist the fuel screw) and ended up kicking 15-20 times before it finally started. Now i just turned back to the parking area since i couldn't risk getting stuck in the labyrinths of criss cross off-road trails ahead. When i reach the parking area, the bikes back to perfect performance. I can button start it and ride it around the same area with no issues. What gives? I checked with my fellow rides, some suggested float valve, some said something else but i haven't really take the bike apart since then. So here i am, trying to figure if it's the jetting, air fuel screw or float valve or something else? Any help would be much appreciated. Oh, and wish ya'll a great riding year of 2021 ahead!!! Kamal
  15. Hello Everyone, First post on thumpertalk but I have been lurking the forums for awhile. I am new to the supermoto world and definitely new to carbed bikes. Came from the supersport world so any help is appreciated. My setup: 2015 DRZ400SM -Full Yoshimura RS-2 Carbon (recently installed) -Stock Mikuni Carb -K&N Air Filter -3x3 Mod (to be completed soon) -JD Jet Kit (also to be completed soon) I live in CT so the bike is inside for a couple months due to weather. I can run it but cant ride it much unless we get a clear day, so I would like to get the jetting as close to perfect as I can on the first go around. Riding anywhere from sea level to a couple thousand feet above sea level max (0-2000ft) Wondering what you all recommend for my jet setting. I have the stock fuel screw as well as everything the JD kit comes with. Thanks for the help!
  16. I got a 2014 crf50 that came with a yoshi exhaust but it wasn't jetted properly. Could anyone please let me know if they know the right jets to use? Cheers
  17. I was wondering how would I go about converting a KLR650's single exhaust tip into dual twin tips for under 200$ (example picture below). Is there a pre made system already made?, are there converters and other pipes pieces I can put together to build it?, or is something I have create entirely on my own by cutting and bending pipes? thanks
  18. First off i would like to say thanks for all the future input! I own a 2017 drz400s with 1700 miles. I upgraded the carb to a fcr slant body without choke (not the mx), upgraded the exhaust to full yoshimura system, 3x3 air box mod, and a 50 tooth sprocket. I am not sure what jets i have running now, but the bike seems to run ok. My only issue is at high rpm i feel like its sputtering and lacking power. Its very snappy and feels beautiful at slow speeds. Sometimes i dont even know im in 4rth gear because it pulls hard at low rpm so i tend to forget what gear im in. I have been reading for days and watching hours of youtube but im a tad bit confused. My bike starts perfect with a cold engine without a choke and i have read that thats a sign of rich conditions. Its also seemingly faster for the first 5 mins but as the engine warms up i feel a slight difference in power. It easily does 85-90mph on a cold engine, probably more (i dont like to push it too much the engine isnt really broken it) but after a few minutes of riding it struggles to reach 75mph. I know the spark plug is a good indicator but before i go and start taking shit apart i was hoping to get a more experience opinion. Im on the brink of buying a new carb even the one i have is only 5 months old.
  19. Hi Guys, I would like to install the Athena 440 kit to my 2005 DRZ400E. It has the Yoshimura RS3 full system, other than that it's fully stock(so it has the stock FCR39 carb). Im a little clueless what jetting should I use to bring out the best from this setup. So can you give me some help or guidance in this topic? Thanks for the answers. Cheers.
  20. Alright. I have a 2020 drz400sm. I just installed a fcr39mm carb, jd jet kit, and full yoshimura rs2 exhaust. I HAVE NOT DONE THE 3X3 MOD. I have it dialed in great to start with the choke pulled and run spectacular after a short warm up. I am afraid if I cut the 3x3 mod I will then run lean and not be able to dial it back in. So here is my question: How necessary is the 3x3 mod?!? What will the difference be?!?
  21. Hi Guys! I hope I can find someone here who could help me, I've looked everywhere and can't find my problem. I recently bought a Suzuki rmz250 2017, I've done 13 hours on it on track with stock setup and stock mapping. My yoshimura rs4 full system just arrived, installed it, everything is awesome about the pipe. The only problem is I am running lean. I installed the rich mapping plug, but the bike is always backfiring as soon as i let go of the throttle. I thought I could buy a power commander or yoshimura efi tuner, but I can't find any company who makes one. So here I am, racing this weekend, my dealer doesn't know what to do about it, and the last thing I want is to have my bike running lean the whole weekend. Anyone has had the same issue or know what is going on? Thank you so much!
  22. Time Left: 18 days and 4 hours

    • WANTED
    • New

    I am looking for a few Yoshimura + Zeta parts for my Suzuki DRZ400s. PayPal Payment only (shipped to NY, fees included) -Yoshimura engine guard (skidplate) in both colors -Yoshimura engine plug kit (have several TDC plugs, need crank inspection plugs, both colors) -Zeta Oil filter cover and Zeta Starter cover -Yoshimura engine mounts -Yoshimura Brake pedal clevis (i think in 2 colors) -Yoshimura was rumored to have made triple clamps as well... Pics for examples. Looking to buy multiples of each if you have it, Need these for a pretty specific build. Pm or reply here, thanks!

    NO VALUE SPECIFIED

    , New York

  23. How much of a performance bump is there when putting a full exhaust, ejk, and modding the air box on a crf250l? Are there any dyno numbers?
  24. I have a 2008 crf150rb with a Yoshimura RS-2 Full Titanium exhaust system, and I don’t know what jetting to run. Does anyone recommend or have any idea what jetting i need to run? Other than the full Yoshi exhaust system the bike is mechanically stock.
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