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Old 07-12-2019, 07:04 AM   #3
slonomo
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Yamaha
 
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,441
Default Re: GX390/Predator420/VC460 timing key question

Every time I put an offset key on my 440/460 it would shear. In fact, I think that's why it stopped running this last time, it was frustrating. I lapped the crank and flywheel, new nut, and impact to tighten it. It seems like it happens on decel with a backfire.
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