My carbs aren't getting any fuel...

M

Mags

Active Member
So one problem after another on this Ole gal. 1980 cb750k

I bought all new floats and valves, cleaned the rest of the carbs. After installing it (and the airbox omfg) the carbs don't want to drink.

I literally 1 float bowl off while the carbs are on the bike and fuel flowing through my petcock. It is bone dry. What gives?

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Sounds like you have a blockage in the line or the carb. You should clean the fuel inlet on the carb. Replace all the lines as well.
 
Sounds like there's a clog in there somewhere obviously, but when I had this problem it was the float valve itself that was sticking in its housing. I also had some flow problems because of fuel filters, if you have external filters try starting without them. I've also had issues where the float was way too low and even at the bottom of its travel the valve wasn't opening, so that's a possibility too.

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I'm going to pull the carbs again and investigate for a clog in the fuel rail. The floats aren't adjustable from what I understand.

No inline fuel filters and petcock allows for fuel as it should.

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I feel like such a moron. As I was going through my carbs I noticed I didn't set the float valves into the floats themselves, I just put the valves into the seat and installed the floats over them lol. Dummy check.

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