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Old 01-24-2012, 08:24 PM
dmb dmb is offline
Motorized Bicycle Elite Member
Join Date: Dec 2010
Location: lakewood ca
Posts: 1,348
Default Re: Getting all 3 Horse Power out of your GT-5 Sky? (tear down)

thats what i was talking about. i think the ports are lined up for a 48cc crank but they didn't think when they bored and stroked it. woulda been fine on a four stroke but they didnt think port timing. he musta been the owners son. you could raise the transfers a little cut the skirt and up the compression to make up for the volume loss [transfers] good luck dennis
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