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Old 24-09-18, 07:50 AM   #6
Biker Biggles
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Join Date: Jan 2005
Location: Barnet Herts
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Default Re: Bike venting fuel through filler cap?

Quote:
Originally Posted by mrplasid View Post
I wonder if the breather is rusted through in the tank, and somebody blocked it at the bottom to stop it leaking. Then heat from the engine could cause pressure force fuel through the hole in the breather and out the top ??
That sounds ominously possible especially if it is venting fuel when the tank is not full.However, it would also mean rainwater will be able to go the other way and contaminate the fuel in the tank. Any symptoms of that?
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