Author Topic: Which way do I bend the tang?!?  (Read 3429 times)

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Offline Tugboat

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Which way do I bend the tang?!?
« on: October 02, 2012, 09:05:30 PM »
Currently my fuel level is even with the lip of the bowl on my #2 carb, and it's overflowing. I verified via the clear tube method. So which way do I bend the tang to close the valve earlier? More "closed" or more "open"? CB750K 77 carbs if it matters...
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Offline 750resurrection

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Re: Which way do I bend the tang?!?
« Reply #1 on: October 02, 2012, 09:13:43 PM »
You bend the tab (that the needle wires go around) toward the direction that the needle seats. If it's on the bike that means bend the tab upward.

If it's on the bench and upside down, bend it down in toward the needle seat hole.

If none of that makes sense, bend it more in the direction it's already bent as compared to the legs that hold the floats.

Since the tang will close the needle to the seat sooner, you will lower your bowl fuel level.
« Last Edit: October 02, 2012, 09:20:59 PM by 750resurrection »

Offline Dimitri13

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Re: Which way do I bend the tang?!?
« Reply #2 on: October 03, 2012, 12:06:14 AM »
I'm assuming the floats are set to spec already?

Offline lucky

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Re: Which way do I bend the tang?!?
« Reply #3 on: October 03, 2012, 09:35:09 AM »
Currently my fuel level is even with the lip of the bowl on my #2 carb, and it's overflowing. I verified via the clear tube method. So which way do I bend the tang to close the valve earlier? More "closed" or more "open"? CB750K 77 carbs if it matters...

The float level needs to be set as the manual tells you.
Once you learn that and the float needles are NEW all of your problems will be over.

New float needles and seats. Set according to the book. End of story.

Only use the clear tube method AFTER.....AFTER you have set the floats the way the book tells you.

Offline flybox1

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Re: Which way do I bend the tang?!?
« Reply #4 on: October 03, 2012, 10:01:50 AM »
Tug, with these PD carbs, i found the easiest way to set floats is to get a straight edge, and set it on top of the pilot jet.
your floats should be at the same height.
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Offline Tugboat

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Re: Which way do I bend the tang?!?
« Reply #5 on: October 03, 2012, 10:41:34 AM »
Thanks for the advice guys! Hopefully I'll get it straightened out tonite.
If it's worth doing, it's worth doing twice.