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Old 09-29-2021, 12:25 PM   #6
Working_ZS   Working_ZS is offline
 
Join Date: Aug 2016
Posts: 365
A few other things to check would be a clogged air or fuel filter, a restricted exhaust, and engine cylinder compression; also take a good look at the condition of your spark plug when you remove it to do a compression check - it should be tan or tannish in color, not white, and definitely not black and sooty, which would indicate you are running too rich. If the plug is black and sooty, and your air filter is not clogged, then you will need to install different jets in the carburator. If you need to swap out the carb jets, I would use your friends bikes as a reference point as to which size jets you need.


 
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