Sporttrax top end!!!!!

1169 Views 7 Replies 5 Participants Last post by shadetree, Oct 1, 2010

kdxmadman

Discussion Starter · Sep 30, 2010

i am thinking of buying a 2001 sporttrax 250 that has a blown top end. I know it needs to be bored and a new piston, but i was wondering if i would have to rebuild the valves. I also want to know what would cause a 4 stroke top end to go out.. Thanks for any responces

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Helmut

· #3 · Sep 30, 2010

kdxmadman said:
i am thinking of buying a 2001 sporttrax 250 that has a blown top end. I know it needs to be bored and a new piston, but i was wondering if i would have to rebuild the valves. I also want to know what would cause a 4 stroke top end to go out.. Thanks for any responces

Welcome to the forums. Concerning the valves, usually you can get by with just replacing the valve stem seals, but you will need to check the valves to make sure they are sealing good and aren't bent when you remove the head.

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