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1980 cb750f petcock

Exponent

Exponent

CB750 Enthusiast
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Where can I find one? The one I ordered from 4-1 does not fit, does anyone know the dimensions of the tank threads? Thanks
 
 
Last edited:
I think your bike could have come with 2 different size nuts on the petcock. Put a vernier caliper on the threads of the tank and tell us what it is. That may explain why you got the wrong one.
 
Loose Chain said:
I think your bike could have come with 2 different size nuts on the petcock. Put a vernier caliper on the threads of the tank and tell us what it is. That may explain why you got the wrong one.
Click to expand...
16mm, I think the size was right but the thread pitch was off, it was a generic petcock for sohc 750s and 550s and such
 
 
I’d start by going down to the local hardware store. Try finding a metric bolt that screws in the hole. Unless it’s some kind of metric pipe thread, there are usually just fine and course threads.

Hopefully if you find the bolt that fits at least you will know what size you’re working with. Good luck guy.
 

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