is it normal for it to shake bad in high rpm's??

how can i fix it?

 

Yes it's normal. It's scared of the yFZ450.

 

Hey butters you may want to remove your clutch cover and check your counter balancer nut. They have been known to back off if this happens it will vibrate bad until the nut comes off and then it can cause huge problems.

 

welp, i found out the problem


when i rebuiol;d the motor, i put the gear on the crank 1 tooth off the mark[img]i/expressions/face-icon-small-blush.gif[/img][img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-mad.gif[/img]