how many miles till rebuild?

[dan83]

i know it depends on conditions, but what is a reasonable number of miles to expect to get before a rebuild is needed? Can new rings be installed without replacing anything else?
thanks
dan

 

[CaptainObvious]

It's not the miles, its the hours. It also depends on how hard you run the bike and how you take care of it.

Expect anywhere from 10 to 100 hours. I know that doesn't help you but I can't see how you ride and how often/well you clean your air filter.

You have a new KDX, don't you? If you leave your stock jetting as is, you'll have to service the power valves before you service the rings.

 

[McRider]

Back when all the two-strokes were air cooled, I used to do a top-end job every year. But after having three water cooled KDXs, I decided I was wasting money. Right now I have over 4000 miles on my 99 220, and it still runs strong. But I am doing a top end job this winter.....probably new piston, rings and top end beraring. Plus, of course, cleaning the power valve.