<< Well I guess there is pure stupidity and there is riding it hard.
These things can handle almost anything you can dish out.
ERIC >>



Pure stupidity yes but it's not even funny how many idiots I see doing this type of crap all the time. They just rev the **** out of there motor to get someones attention and they think it's &quot;cool&quot; to put big ruts in the trail.

 

you can always do a new top end and then do a compression test. then when it starts to drop then you know you need a new top end. everyone rides different runs different mix ratios has different mods. so pistons can last from anywhere from 13 or more to 1 year depending on maintenace and how you ride.

 

I got my R in 1998.IT was still on the original bore.I broke the center casing and when I tore it down I found out the piston was cracked.I had it bored .020 over and bought a wiseco piston kit.I rode it till november like that.All hard hours to.When I tore the top-end end down it still had cross hatch marks on the cylinder.IT was starting to get a little bit of &quot;blow by&quot; though.I didn't do sa compression test.But it only took 1-2 kicks to start it.

Like trapperb1 and others said.It is how U break in your top-end and what kind of oil U run.I ran maxima castrol 927.So far I have very good luck with it.As a matter of fact while I am waiting to get The ESR330 kit I am going to rehone the cylinder and by new rings.(if the ring gap isn't to big.


86 trx250r
97 300ex