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Old 07-28-2009, 11:35 PM
gohst ryda gohst ryda is offline
Motorized Bicycle Newbie
Join Date: Jun 2009
Location: australia
Posts: 13
Default lean or rich help/

with my expansion chamber added to my 69cc i need more top end
thew plug is black, do i need more fuel getting in or do i need to add more oil????
im confused?
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