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Old 02-05-2010, 11:09 AM
marts1 marts1 is offline
Motorized Bicycle Elite Member
Join Date: Sep 2009
Location: Oshawa Ont CA
Posts: 392
Default Re: Engine Noise with 62cc

Originally Posted by Bombardier View Post
part of the reason the larger engine rattles more is because the larger the capacity the greater the heat build up so the more piston to bore clearance needed. basicly the 66 cc engine usually has more clearance betweent he piston and bore than say a 50 cc engine . also you have a larger piston rattling around inside there .my 66 is the same .
the 50 made a grinding noise only when you pulled in the clutch because the retaining screw on the flower nut was touching the side cover only when i pulled the clutch in .i put 2 gaskets ont he side cover and the grinding noise went away
Which reminds me my kit actually came with 2 gaskets. Didn't know why till now.
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