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When it is going 40 mph at 7000 rpms ( half throtle) and you give it full throtle it sputters out and even loses speed to about 30 or 35. i went through the carbs the other day and cleaned them. does anyone have any ideas of what it could be??
 

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Tdot69 said:
When it is going 40 mph at 7000 rpms ( half throtle) and you give it full throtle it sputters out and even loses speed to about 30 or 35. i went through the carbs the other day and cleaned them. does anyone have any ideas of what it could be??
what temperatures are you riding at? The 600's seemed to be jetted a little rich, i put mine down a size and it ran great, but if your bottom end performance is still decent (0-half throttle) try moving the needle on the slide down a notch.
 
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