1) Engine problems.. If your quad wont run..post in here.

Bad vibration

Old Dec 23, 2017 | 05:58 PM
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Trailblazer
Joined: Jun 2015
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From: Pasadena, Ca.
Default Bad vibration

Merry Christmas,
I bought a new engine off of Ebay for my kids coolster 125quad. The original engine ran great til I put royal purple synthetic in and it turned to molasses. I think I burned up the clutch. Anyway, I put this new engine in without a problem but it has MAD, CRAZY vibration between rev and idle on the downward slope of the RPM. It smokes quite a bit when the throttle is stabbed too and will occasionally stall. Does this sound familiar to any one?
 
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