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Old 08-22-2013, 01:15 PM   #7297
northsouth15
Gnarly Adventurer
 
Joined: Jul 2011
Oddometer: 180
that's a tough call...I'm guessing either electrical or carb

when you say "half", do you mean throttle position or engine speed?

if it's engine speed, it might be electrical - I've seen it happen with an XR250 where he had a loose ground...you would just have to chase all the electrical to where it attaches on the frame and clean/re-attach the connections

if it's throttle position, my *guess* is that it's carb - low throttle response means the pilot circuit works fine, but higher throttle position either means the bike is starving for gas or there is an issue with the slide or main jet/needle

since the carb is easier to figure out, I would try that first
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