cr85 piston

how do i tell when i need a new pistion

when u dont have much power any more...and its hard to start sometimes

Why not just pull the top end apart and measure? It doesn't take much time to do, and instead of guessing you can have piece of mind. You will need to measure both the piston and bore in order to know for sure.

how do u do that? measure what?...i kno i need a new top end

when u dont have much power any more...and its hard to start sometimes

If you wait that long you're just asking for major trouble.

The stock Honda rings wear out quickly. Ours were out of spec after only 20 hours. A Wiseco top end kit will run you about $120 and includes everything you will need for a top end rebuild. Average rider will need a new top end about every 40 hours or so.

thats exactly what im gettin....4 years on my top end or more

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