I have a 1982 DT 40, serial number 4001 etc.. Anyway I think they detuned it by replacing the throttle cam. Anyway where can I get a new throttle cam to up the hp.
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DT40 detuned to 35 hp
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have you cheked the butterflies IN the carby throats? they must open fully, just because the throttle only moves a set distance, does not always mean it is meant to move further, it is the butterflies that determine how far it needs to move.
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regardless of how many pictures you show us, or how the throttle works, YOU need to have a look in the carby throats and have someone work the throttle (with motor not running of course) and see if the butterflies open all the way, we still don't know that yet.
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