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Sporttrax top end!!!!!

1173 Views 7 Replies 5 Participants Last post by  shadetree
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
1 - 1 of 8 Posts
if it's the 250EX they are cake no cam up top to contend with it's a pushrod engine. super simple.
1 - 1 of 8 Posts
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