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Title: Beta Fuel Lines Post by: neil-yaj396 on 22 January, 2011, 12:25:44 PM What size are the fuel lines on a standard carb model. Delivery (steel pipe to pump to carb) and the significantly smaller return pipe? I have a leak either on the pipe into the pump or the return from the carb, most likely the former.
Title: Re: Beta Fuel Lines Post by: St Volumex on 23 January, 2011, 07:48:11 AM Neil, the inlet pipe is ~ 7.5 mm O.D (6.5 mm I.D.) and the return is ~ 5 mm O.D. and 4 mm I.D.
That's the best estimate at measuring them in my garage this morning. Regards, Title: Re: Beta Fuel Lines Post by: neil-yaj396 on 24 January, 2011, 07:29:43 AM Thanks, the larger pipe is pretty common and easy to get hold of but I could only find one UK seller of smaller diameter braided pipe with ID of 3.5mm, which I've ordered - as the leak seems to have been intermittent the return pipe is now prime suspect.
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