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Topend help

1432 Views 18 Replies 4 Participants Last post by  chuckrussell
my trx200sx runs and drives some what it idles fine but when I give it gas I can hear the topend I rebuilt the motor after the valves stuck and bent I put all new valves and cam chain and tensioners in it does anyone have an idea of what could be the problem I have done everything thanks
1 - 2 of 19 Posts
Are the valves and timing set correctly? Possibly blocked jets in carb? Old fuel?
Stands a good chance the timing is out out then. Did you fit a new timing chain?
1 - 2 of 19 Posts
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