[joker]

hay im thinkn of buying a 2003 or 2004 125sx and am interestd to knw how long the piston and rings last b 4 you have to replace them (hours) also i havent been riding in a couple of years and am tosing up betwen a 125 and a 250 to do trail rides ansd motorcross ifr you have any ideas on wots beta that would be grate thanks

 

[Fred823]

I had a friend who never touched his yz125 for 7 years, then I've heard that people rebuild every month if they are heavy into racing. For the average rider 60 hours is a good time to check the top end.

Depending on how big you are and your skill, it could go either way on size. If you are young, around 115-140lbs a 125 is going to be a good idea. Now that doesnt limit you to only the 125. The 250 is twice the bike and only a few pounds heavier, but you would need to be able to ride it with some control. But if you plan on keeping this bike for a while and you have previous riding experience, I would go with the 250. Same thing being said if you are older/heavier.