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Discussion Starter · #1 ·
this afternoon i pulled my old spark plug out because my bike is currently running like shit but when i pulled it out it was pitch black at the end. What does this mean? Am i getting to much gas? Please help! :unsure:
 

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your rappy is running rich, turn the A/F screw out another half a turn and see what that does. you might just have to play with the A/F until the plug looks like a nice brownish color after a ride. Plus make sure your air filter is clean....less air means it will run rich, more air means it will run leaner.....
 

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Discussion Starter · #3 ·
could this cause my rappy to lose power at half throttle and up and bogg down and die how it is doing now? :help:
 

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It might also be that you need to clean the carbs, and you can do that when you take them off to adjust the A/F screw. But yeah this would be my first step in resolving the problem.
 

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Discussion Starter · #6 ·
thanks for the help guys ill try that this weekend. :thumbsup:
 
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