Question about 2002 Yamaha YZF-R6

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When warm my r6 has developed a missfire at over 5000 rpm as the timing is non adj can anyone reccomend any remmedies

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You might try different plugs

Posted on Nov 19, 2009

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Did this problem come on all at once, or has it progressively gotton worse. Have you changed / cleaned your air filter. Have the carbs been cleaned, are the rubber manifolds without cracks,and are the carbs well sealed, when was the last time they were syncronized. what color are you plugs after a hard run, they should be a nice tan color, are they all firing. check to see if all the pipes are egually warm, do not burn yourself on them.

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Hi, Anonymous and the usual suspects are:
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2. Failed alternator/generator and or voltage regulator.
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10. Accelerator pump damaged or not working.
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12. Restricted, blocked or kinked fuel line.
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14. The gas cap is not venting properly or fuel tank venting system blocked.
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16. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
17. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the links below. Good luck and have a nice day.
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Hi, Anonymous for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.r6-forum.com/forums/57-garage-mechanical-help/152749-low-rpm-hesitation-high-rpm-stall.html
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