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Overflow from gas tank

Old Feb 18, 2012 | 08:51 PM
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zyban
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Default Overflow from gas tank

I have just put a "Fat Boy" twin tank on my Sportster & when i fill it gas comes pouring out of the l/h side cap, I have tried filling slow from the right hand tank allowing it to fill the l/h tank but when i fill the r/h side the same thing happens.
I usually end up losing about 1/4 of a tank of gas (5 litres), I have fitted a vented cap to the r/h side but does not seem to make any difference.
Any ideas - help???
 
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