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Old 03-30-2009, 09:13 PM
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Ghost0 Ghost0 is offline
Motorized Bicycle Elite Member
Join Date: Mar 2008
Location: Bellingham, WA
Posts: 764
Default Re: Topping out at 20 mph...Too much fuel ?

If it still runs better when closing the valve and your float is properly adjusted then in my opinion you need a smaller jet. You can first try to lower the needle to its lowest setting by raising the clip to the top notch on the needle. Most say this only effects low to mid but at least on mine when the needle is all the way down it never comes completely out of the jet tube so it will lean it out a bit on top end.
Design is easy, execution the hard part.
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