Blue Traxx Forum banner

camshaft. timing

  1. camshaft wont move with spark plug in?

    Yamaha YFM350 Raptor/Warrior ('87-Present)
    please help i have 87 yamaha warrior had it running great the blue neutral wire and green reverse wire touched and engine would start just backfire then it would pull start or cam wouldnt move even with breaker bar but if you take out spark plug it turns great and gets spark from plug. Is it...
Top