HELP!! I need a Vacuum slide (disphram) spring !

[Leghorngarage]

Hey ya'll

I'm a noob to this forum and need help. I'm rebuilding my carbs from my 79' CB750k and I'm missing a vacuum slide (diaphram?) spring. Part # 16050-443-701 as Honda lists it. The part is out of production and i can't seem to find one anywhere. Is there a replacement that i can use or is there a secret place i can find one? Please help the entire set is a paper weight without it.


Thank you!

 

[pidjones]

You might try the Classified section, or search ebay for "cb750 carb piston spring".

 

[Leghorngarage]

You might try the Classified section, or search ebay for "cb750 carb piston spring".

Thank you for responding. Did that, did it on Amazon, did it on every website i could find. No luck yet...

 

[pidjones]

Thank you for responding. Did that, did it on Amazon, did it on every website i could find. No luck yet...

From Partzilla for this part:

This Honda*16050-443-701 SPRING, VACUUM PISTON*fits the following models and components:

Honda Motorcycle 1979 CB750L A Carb. Component Parts

Honda Motorcycle 1980 CB750K A - 750 FOUR K Carb. Component Parts

Honda Motorcycle 1979 CB750K A - LIMITED EDITION Carb. Component Parts

Honda Motorcycle 1983 CM250C AC - 250 CUSTOM Carburetor

Honda Motorcycle 1982 CM250C A - 250 CUSTOM Carburetor

Honda Motorcycle 1983 CM250C A - 250 CUSTOM Carburetor

Honda Motorcycle 1980 CB750F A - 750 SUPER SPORT Carburetor Comp Parts

Honda Motorcycle 1979 CB750F A - 750 SUPER SPORT Carburetor Comp Parts

So, this should expand your field some. You might measure one of the others and compare to GL1000 parts, even some Honda cars.

 

[BlueGnue]

Have you tried David Silver Spares, a bit pricey but a good reference:
https://www.davidsilverspares.com/CB750KZ-1979/part_292612/

I ended up getting a CB550 diaphragm on Ebay because it was a good price and i also needed the cover - it fits great but i had to cut the rod down to length!

 

[Wez_]

try 4into1.com They usually have everything. Try their Ebay store. If you don't like the way it's setup. Try their online website.