Carb Stand

[mart850]

Hi, May be worth a look. I had a gs750 years ago that was running rich on #3 for no apparent reason and weeping fuel from under it when parked.
Turned out to be a porous casting between the inlet tract of #3 carb and the main fuel feed to #4 carb that runs directly underneath it. The hole was tiny to begin with acting as an extra jet but as the fuel flowed through it it made the hole bigger so the symptoms got worse.When stopped of course the fuel after the tap continued to leak slowly out of it. Once I'd found it after much head scratching and the air box removal I patched over it with araldite but that affected the air flow into the carb so I ended up getting another set. Problem solved.

[almarconi]

Good idea..I have an old engine stand that's not being used.

[mills]

Check for cracked overflow tubes in the bowl of leaking carb. Take bowl off and fill with fuel then watch for a drip. Common failure.