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Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Thu Jan 19, 2023 7:54 am
by srankin
Bingo! Motion pro, that is the stuff my shop uses. St.

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Thu Jan 19, 2023 8:36 am
by Randolph
Even the Motion Pro hose starts to get stiff after a couple of years. Two years is the schedule I change it out.

-Randy

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Thu Jan 19, 2023 10:26 am
by sblaylock
If you like the look of the braided fuel line you can search for 7mm Volkswagen fuel line. It's available from numerous suppliers.

Randy's tip on putting a washer on before the fuel line is a fuel barb saver. The barbs are made of plastic and have a tendency to break when people pull on the fuel line. It's like the Chinese Finger Trap - when you pull the fuel line it shrinks on the barb. If you push from the washer it expands the fuel line over the barb and slides off easily.

I use a cheap pair of Hose Pliers from Amazon and they work like a charm

https://www.amazon.ca/Plier-Vacuum-Heat ... 44&sr=8-48

Scott.

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Thu Jan 19, 2023 12:40 pm
by vfiori
Are you talking about the brass tube coming up from the carb bowl? It's to prevent the bowl from overfilling.

From the /6 owners manual: "On order to prevent fuel from flowing into the cylinders in the event of a leaking fuel feed valve, excess fuel is conducted away to atmosphere by a pipe in the float chamber."

I actually think mine are clogged because even when overfilled mine don't leak through there.

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Thu Jan 19, 2023 12:42 pm
by vfiori
Didn't see there was more than 1 page. Disregard what I said.

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Mon Jan 23, 2023 10:37 am
by shanman
Happy to report that the leak was in fact the fuel lines! Thanks for the advice everyone.

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Mon Jan 23, 2023 12:14 pm
by schrader7032
Thanks for the update!

Re: 73 R75/5 Carb leaking from tiny hole near bowl gasket

Posted: Mon Jan 23, 2023 1:45 pm
by srankin
Glad you found the problem and it was an easy fix. Thanks for letting us know, and enjoy the riding. St.