Stupid fuel petcock question...

The manual fuel petcock on my 77 KZ1000-B1 has 2 fuel outlets (one goes down and one goes back), as the original VM26 carbs had two fuel inlets. I am putting 29 smoothbores on my bike, and they have only one fuel inlet. Which fuel outlet do I use, and do I cap the other one off? Or do I need to use a T and use both outlets?

should work either way depending on your riding habits,just remember those ltd tanks dont hold much fuel!

BradP77 wrote:

The manual fuel petcock on my 77 KZ1000-B1 has 2 fuel outlets (one goes down and one goes back), as the original VM26 carbs had two fuel inlets. I am putting 29 smoothbores on my bike, and they have only one fuel inlet. Which fuel outlet do I use, and do I cap the other one off? Or do I need to use a T and use both outlets?

As plummen says, should work either way. Both petcock nipples function the same. Use either nipple and cap off the other nipple. A standard vacuum nipple cap works just fine.

The pic below is from a petcock with both nipples toward the inside. On the LTD style petcock with one nipple pointing down, would select either nipple that best routes the fuel line.

Good Luck!

[Click on image to enlarge view]

you might get better flow to the bowls if you use a tee and feed both sides of the carbs at the same time

I just went through this on my bike. First thing I would do is remove the stock petcock and replace it with a pingle. I just couldn't get enough gas to my 29s. The difference was unreal...Russ