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  1. YZ 400/426/450
    I recently brought what I believe is an 04-05 yz450f. When I brought it the guy said it would run but won’t idle, I cleaned the carb an it ran but was backfiring a lot. so then I redid the shims the bike is in perfect time but the kicker binds then frees up and it’s just a constant pattern of...
  2. YZ 400/426/450
    Hello, I just recently picked up somebody else's project bike 🙃. A 2002 YZ426F. The guy told me all it needed was a pedcock valve and some brake work. So I fixed those. I can't get it to crank. He also said the engine had just been rebuilt. Yay. And ive verified the following: good strong...
  3. Motocross and Offroad
    Hello, I would like to ask if anyone has experience with converting a transmission from a 5-speed to a 6-speed on a 2009 wr450? Or a contact for a company that would produce a rebiul kit? thank :)
  4. Motocross and Offroad
    I was told by someone that there was a GYTR kit or performance parts for the WR450f, but I have been unable to find a lot for them (high compression piston and camshaft). Would anyone know where I would be able to find some of these parts/kits, also it was my understanding that the YZ450f and...
  5. Engine work
    Hello, I’ve owned my yz since new and it finally gave me some trouble. It was difficult to start and had a hesitation on take off but power seemed to be normal. It got hot and I pulled the coolant drain plug at the water pump and got nothing but what seemed like a little bit of oily dark fluid...
  6. Motocross and Offroad
    Is there anything he can't do on a bike? FREE VIDEO: Motocross dei Campioni Highlights | The Official MotoGP Website
  7. Motocross and Offroad
    YouTube - 2010 YZ450F intro Details have emerged on perhaps the most hotly anticipated motocross motorcycle for next year: The 2010 Yamaha YZ450F. Off-road and motocross riding enthusiasts have been buzzing in anticipation of this new dirt bike and Yamaha hasn’t disappointed. Next year its...
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