<div class="FTQUOTE"><begin quote>Originally posted by: harleypap

Well i had it bored 20 over. Bottem end was good. Now i still have the same knock. I know it has to be the clutch now. But what part could be bad? I have new buttons new bushings new spring. Rode my friends 06 and it is starting to make the same sound. Not as loud as mine though. This is always after riding 15 to 20 minutes. Does a clutch just go bad? thanks.</end quote></div>

I've never seen it go bad like that. Sent you a PM

 

when my wifes crank seals were bad and it was sucking air it would spark knock(ping,rattle) and start to lose power and get hot as heck...