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Old 02-19-2012, 01:03 PM
recon chris's Avatar
recon chris recon chris is offline
Motorized Bicycle Senior Member
Join Date: Apr 2011
Location: pacific grove
Posts: 87
Default Re: Getting all 3 Horse Power out of your GT-5 Sky? (tear down)

I thought "retarding the spark" or making the engine spark later was what this engine needed at high rpms? Unless you engine was already very retarded to begin with i thought that should have helped?
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