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Old 16-09-19, 10:03 PM
Geoff Dowdle Geoff Dowdle is offline
Join Date: Jul 2008
Location: Sydney, Australia
Posts: 325

a few things to consider

Is your new tank baffled ? If not it might push fuel up the breather on corners.

Are the fuel sender unit and fuel reserve unit sealed correctly to the tank?

Try not filling the tank so full and see if you have the same issue .

If fuel is pushed up the breather it should enter the filler cap well and drain to the road. There should not be fuel vapour entering the cockpit unless the well is rusted or not sealed correctly. Is the drain pipe in good condition?

When you fill the tank do you get fuel coming up the breather?

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