Question about 2003 Yamaha YZ 125

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Spark plugs ar carboning

I HAVE A 1981 YAMAHA 1100 MIDNIGHTSPECIAL. THE SPARK PLUGS KEEP FOWLLING UP , LEADING TO POOR TR0TLE AND HESETATIAN AND BACK FIRE. I HAD A MECANIC LOOK AT IT AND HE PUT NEW PLUGS AND IT RAN GOOD FOR A WHILE,BUT THE SAME PROBLEM ALL OVER AGAIN.

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Is it burning to much oil??? is the carb in tune?
you could try a hotter plug,,this should stop it guming up on you

Posted on Jun 03, 2010

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