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Old 26-01-06, 17:10
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David Pope
 
Join Date: Jul 2003
Location: Eston, Sask, Canada
Posts: 2,251
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One thing most people never think about regarding this problem is make sure the fuel line goes uphill all the way from the pump to the carb. If you get like an inverted p-trap the vapour bubble gets up there and won't push out. If there's no place to trap the bubbles they just go through the needle valve and escape to the atmosphere. The same applies from the tank to the pump.
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