Posted March 07, 2007 - 05:44 AM
I have a new to me 2000 YZ426. I recently replaced several bearings, fork seals, hoses, checked valve clearances and did a general in depth cleaning of the bike. Since i have put it back together I cant get it to rev at all. Starts much harder than before, takes 5 or 6 kicks. Idles nicely with choke on and a bit low with the choke off. After a couple min of idling the header started glowing red hot so i assumed i must have put the cams in wrong and the mechanical timing was off so I tore it apart and checked it again. Then I read the posts about the red pipes and that isn't the concern now. I am thinking that its probably the carb thats plugged up but i want to get any advice you guys have.