we have a leak

[letchworth rider]

Sorry folks, just have to rant a little.
Almost ready to start the GS750EX (had it started last fall). Hooked up the temporary fuel tank with an inline valve, and the fuel came running out of #2 carb on the LH side. The air box is all back on.
Order kits and a float. Ordered petcock and brake parts from Georgefixs today. Good prices.
Guess it won't run soon.

Thankfully I have the CB350K3 Honda to ride.

Thanks for listening.

[Chris G]

Just a question on your remote fuel tank, did you have it strapped up much higher than the bikes height, folk tend to strap them to a beam in there garage etc, this is enough to to make even a good condition needle valve to pass fuel, catches folk out, end up changing parts that are not defective.

[chuck hahn]

Tap on the bowl to see if the float had hung up????

[Brendan W]

I'd second both earlier comments and add opening the drain screw and letting fuel flow for a bit. Sometimes the float will drop lower than usual and a piece of grit will have the chance to escape the needle seat.

[chuck hahn]

Yup..that too.

[letchworth rider]

Nope, had it same place as fuel tank.
Yup, tried to use small taps, quit when I reached for a large ball peen!
Yup, drained bowl, no diff.

Bummer.

[Brendan W]

Bummer. Hollow floats sometimes sink if they spring a leak ?
When you drained the bowl did you let the fuel run through on prime to flush it ?

[letchworth rider]

No prime, just a valve in line to a small (clean) tank on top of the frame. Will try a flush, can't hurt.

[letchworth rider]

OK, brain fart alert!
Put hose on vacuum port. Let's try this again.
Of course, I figured this out AFTER I removed the carbs from the bike.
The fun of the years to finish a build.