pistone broke... whos fault?

[Zebedee]

SHIIITT!!! I just read through BOTH pages of these posts ...

Me too

[inlinefour]

Everyone else here should step back and remember when they knew nothing.

Bikes are cool.

I've got a manual for the bike if you want it.

[Ixion]

General rule, learned the hard way from years of old bikes. Old machinery is old machinery : it's worked hard over the years, things get tired. You wouldn't expect your old granny to line up against a 20 year old girl in the 100 metre sprint, would you? Same with bikes. Treat the old 'uns gently, cut them a bit of slack for their age, and they'll carry on for yet more years with no problems. But don't expect them to stand up to the sort of abuse that a new engine will survive. Redlining a motor is abuse, no matter what. A new motor will survive it. An old one may not.

Old engines may smoke - may mean something, may not. May go for years smoking away.

[Megazoid]

ugh... thanks... finnaly some constructive critisism... i'm not gonna get put off bikes... i'm gonna get a boulevard c50...

thanks everyone

[Megazoid]

oh yeah, and if the dude would have told me i have a problem with valves, i would have taken it to my friend who takes engines apart for fun, and had it fixed for 200 bucks max...

[Megazoid]

anyway... i have nothing more to ask... thanks everyone

[CLEAN CUT]

oh yeah, and if the dude would have told me i have a problem with valves, i would have taken it to my friend who takes engines apart for fun, and had it fixed for 200 bucks max...

And does your friend have overheads and pay tax and compliance costs? And does the ''dude'' have x ray eyes and a crystal ball? Get real. :

[Motu]

So if it had problems with the valves,how did that damage a piston? Valves meet pistons by over revving....or by a completely worn camchain.

[Ixion]

Combination of old tired valve springs, worn cam chain putting timing a bit out, close clearances on a highly tuned engine, and the "redline" that was safe when the engine was new isn't safe any more.Impossible for anyone to tell without pulling the engine apart, prolly not possible even then. If surety is wanted, buy new.