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Old 09-11-2014, 11:54 AM
crassius crassius is offline
Motorized Bicycle Elite Member
Join Date: Sep 2012
Location: USA
Posts: 2,784
Default Re: 4 stroking at low speed

300miles would be better before trying to tune it - the older speed carbs were about 2mm larger in the venturi than NT - didn't make them horrible on the standard engine setup, but they worked better with an expansion pipe - I currently see a newer ver of the speed carb being sold now, but don't know what has changed
Sometimes I sets and thinks, sometimes I jes sets.
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