Question about 2002 Yamaha TT-R 250

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My bike used to run good until I moved from 3000ft to 7000ft above sea level and it sat in a storage shed for a year. Idles fine but wont run right unless it is wide open. Seems to be rich. help me!!

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Sometimes altitude can make a difference, but most likely your problem is from storage. The air is thinner at 7000ft, so it will only be air mixture adjustment. You need to prepare your bike for storage! I would remove the carby, remove the bottom from it and inspect for dirt,and or water, clean the jets out, and put back together. The cause is most likely water or dirt in your carby.

Posted on Apr 27, 2010

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