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'81 750K Carb Pucks

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'81 750K Carb Pucks

Ccheese4
15 posts
So I'm currently completely disassembling and cleaning the carbs on my '81 750K and I'm having trouble getting the vacuum pucks out. I removed the screw that was in the middle, thinking that was all that was holding it in, but I'm still unable to remove it. Is there something I'm missing or is there a specific method to get it out?
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Re: '81 750K Carb Pucks

robs750
165 posts
Did you remove the black kidney-shaped plastic air jet cover?
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Re: '81 750K Carb Pucks

Ccheese4
15 posts
i was under the impression that the air jet cover was beneath the vacuum puck, which is currently stuck in the carb (all 4 of them are stuck).

I'm able to wiggle it a little bit, but shouldn't it just slide out?
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Re: '81 750K Carb Pucks

robs750
165 posts
IIRC ,I had to remove the screws that hold the covers on.I think they are also a guide for the slides.Disassembly should be easy.

When you say vacuum pucks,are you talking about the slides?
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Re: '81 750K Carb Pucks

Ccheese4
15 posts
yeah, I've heard them referred to as pucks before.

I finally got them out. Just had to let a bunch of carb cleaner soak in there. Varnish was coated all over the needles, holding them in.
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Re: '81 750K Carb Pucks

seestheday
1461 posts
Wow, those carbs must be in rough shape.  My 81k carbs slid out super easy and, and my carbs must be immaculate in comparison.
1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

My wife's recipe website that I'm trying to help promote: Strawberries for supper. Yes, I am a lucky man.