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Found 10 results

  1. Rebuilt top end on our 2014 KX250F. C4MX head with all new parts. New Weisco HC Piston and Cylinder. Vortex X10 ecm. Web intake cam. FMF Mega Bomb header stock muffler no mid pipe. Raced one night ran fast but stumbled and sputtered under at low speed when giving full throttle. Took to dyno and tuned the ECM fuel settings via Air/Fuel ratio and the response is great from slow thru wide open. (this engine is on our outlaw kart on 1/8 mile dirt banked oval. 50+mph 10 sec laps. wide open at green rarely lifting.) second race after dyno runs the header starts to glow under warm up in pit but not when racing. engine began to make some noise. third race night engine is knocking loud and i am concerned, we ran it and it was quiet after it was hot. intake side of piston skirt is galled and scratched up. the cyl wall is galled up. the rest of piston is looks great. now i need another new P&C. can anyone confirm if this sounds like a bad lean condition?
  2. Im 14 years old and a i race, a 2018 kx100 ive had it for two years now and its time for a new cylinder. As ive gotten faster, ive noticed ive been needing a bit more power since i scream it in any gear. I also Just got a 2018 ktm 150 which has so much more power and im never close to touching the powerband on it :) . I was looking at the 112 kit so i could milk it for one more season but i have a few questions. And Yes My kx has a lot of "go fast" parts on it already (a Full fmf pipe and silencer, carbon reeds, Different jettings, Different carb spacer, wiseco piston, hinson clutch, over sized radiators, And a lot more) Here're the questions -will i need to run race gas -is it any faster -What's the best place to do it -How reliable will it be -Will it be too much for the bike? And If you have one put some weak points about the bike and some Good things about it. (The picture of it is Old) Thanks
  3. Yep its that time of the year again !This year its going to be a AMA sanctioned series event so its gonna be a better course than we ever set up.with a lot of new terrain that has never been used on the property (Sahara Sands Eagleswood NJ) Visit www.ride-mci.com for more info!
  4. GNCC was cancelled for this weekend. Looking for a place to ride/race? Come out to the VFTR Moonshine Enduro and Halfmoon Jr Enduro. The Halfmoon Jr Enduro is for children and is ran on Saturday. The Moonshine Enduro is for adults 16yrs and older and is run on Sunday. Please see attached flyers. Hope to see you there!
  5. Curious to if anybody knows if any companies make preprinted number plate backgrounds of the ol’ 82’ XR200. Planning on racing amx and some vintage cross county.
  6. Hi there, So I am starting racing with a new bike, 1985 (rfvc) Xr250r. This bike is a race bike, however I was wondering how to keep it cool as it is air cooled, now the oil I use doesn't tend to overheat too fast however after a full day of racing i'm sure it will. How can I install an oil cooler? I have read article about people modding the xr200r (Rfvc) to have one. But not how to do it... So How do I do it?
  7. Britney Lee

    Pw 50

    We have a pw 50 and wanting to get our son into racing. We want to keep it AMA legal but still do what we can too it. Suggestions
  8. Hello, it's finally come time for me to build my YZ400E. I have a 250 of the same year that's going to be turned into my everyday bike so I've decided to build this bike into a modern 450 killer. I know it's never going to be as fast around a track, the suspention, frame, and brakes will never let me do that. But if I line up against one of my friends on a brand new 450 on a streight gravel road I want to destroy them. I'm gonna keep the bike looking old and beat up but I'm gonna fully rebuild the engine and chassis. My question for you guys is how do I make rediculous power out of this thing? How do I get a high top speed and quick acceleration? I have about 1k to spend on this thing so give me your suggestions. Thanks.
  9. Hi, can anyone recommend an amateur motocross race series that's well run and uses good tracks in the UK? I've been a member of sidcup club who race at Canada heights which has been really well organised. Timing with transponders, enter via ACU etc. I was a member of Banbury, although good the entry was via fFacebook and you had to be quick or it filled up. Plus no transponders. The acerbis amateur nationals looks good but that's both days of the weekend and I can't see much on what events the Amca do. I'm located in South East. Any suggestions or advice would be appreciated.
  10. What: Skagit Motorcycle Club presents THE KILTED DUCK Scottish Trials and Poker Run! When: April 22nd, 2018, signup opens 7:30 am first rider our 8:45am Where: Walker Valley ORV, Mount Vernon, WA. lmited dry camping avail Friday evening-Sunday afternoon for more info see flier attached or email ChrisRachel08@gmail.com SEE YOU THERE!!!!!
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