Quote:
Originally Posted by wadschopshop125
too much oil in the gas. the motor isnt burning it go leaner in your mix.
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WRONG!
It is caused by rich jetting, not your pre-mix ratio. Reducing the amount of oil will make the air fuel ratio richer, and only make the problem worse.
Try leaning out the jetting a little bit. Most of the KX85's benefit from leaning the needle one positon too.