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Post by josh on May 16, 2015 12:06:05 GMT -5
I installed the aftermarket primary gear and now i have a pretty loud wine/whistling sound. I don't think its supposed to do that. Did i do something wrong???
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sjmc
New Member
Posts: 4 
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Post by sjmc on Jul 20, 2015 2:33:03 GMT -5
Hi Josh. Yeah my sons PW50 does the same after fitting the gear. The wine/whistling seems more noticeable when the throttle is backed off. The only noticeable difference between the Yamaha OEM primary gear was one less tooth and the gear was solid without any engine dampening rubbers.
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