How many hours?

[Troy86250r]

I have an 86 250r and it has the original top end in it. I was looking through the manual and it says to replace the piston and rings every 30 hours. Is this true or can I get by with more? The guy I bought it from said it only had 25 hours on it when I got it (it sat in storage for 14 years), and I have put about 5 or 10 hours on it so far. It has good compression, and it starts secound kick every time. Should I replace it?

[4punksdad]

I have always said.........if it aint broke, don't fix it.

[Chef]

Originally posted by 3punksdad
I have always said.........if it aint broke, don't fix it.

Exactly....but the piston and rings should last more than 30 hours...

[The400exExorcist]

yeah...keep it....when you start losing compression....then its time for a new piston/rings

[Troy86250r]

Thanks for the replies. I still dont know what to do. I have had people tell me to replace it and I have had people tell me not to replace it. I might just replace it just to be sure.

[Chef]

if you have/can find a compression gauge thing to test the compression, test it, and see if its too low. when its low, you need to replace the stuff

[The400exExorcist]

Yeah...thats probably the only way to tell how much compression you have in your cylinder....it should say in the manual how many psi's should be in the cylinder