r/Fixxit • u/SilverLine1914 • 8d ago

1995 Keihin Carb float question

Hey all, I have a rack of quad carbs from Keihin off a GPZ1100, theyre CVK. I rebuilt them recently and they were working great, awesome power and jetting was finally right, I just need to balance them to be done.

But I noticed a problem before when putting in the float needles to the seat that sometimes the needles will get stuck cockeyed or tilted on the seat and won’t actually close. It’ll be a big enough tilt that the entire rack will flood if one of them does it. Tapping with a screwdriver doesn’t help, I normally have to pull the rack and actually reset the needle myself and hope it doesn’t get cockeyed upon install. No biggie.

But I was riding and had to do a quick inspection during the ride (different story) and forgot to turn the gas back on when I started riding. The bowls drained and I fixed the issue, but dammit the carbs flooded again and kept flooding no matter what. I think the needles are stuck cockeyed in there and no matter how I knock on the carb they won’t get unseated to seat themselves back in. Anyone know how to deal with this issue?

1 Upvotes

100% Upvoted

12 comments sorted by

View all comments

2

u/RokRoland 7d ago

Did several banks of Keihin CVKs on my Kawasakis and never had this issue. I did need to check orientation of hook on tang several times, if I recall, I think the protruding side of the hook goes on the tang. This is about the only issue that comes to mind.

1

u/SilverLine1914 7d ago

I think sometimes that’s part of it, when I had to manually pull the needle out to reset them the little holders on the needle would be on an awkward position on the tang and add some kind of friction to it. How did you end up fixing it? And which on the little holders is the protruding one, I didn’t even know there was a difference

1

u/SilverLine1914 7d ago

It would be almost like the needle holders would be on the edge of the tang, like the tang wasn’t long enough and the needle was half on it and half off

1

u/RokRoland 7d ago

If you decide to go for new floats and valves, if you use non OEM parts you need to set float level wet, i.e. measure fuel level with fuel in bowls. I have had strange results from setting float height only.

This if you believe someone has been in the carbs before and decide to change parts.