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Discussion Starter #1
ok my sled runs great at lower altitude but i found today as i went up about 1500ft it didnt rev out fully it only his about 7500 rpm and it hits 8200 rpm at a bit lower .. why? and how can i fix this? i can run for 3000ft up to 7000 in know time here but i`ve never had clutching like this before
 

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Discussion Starter #2
ok then...so may be jetting???.. anyone? anyone?
 
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