Topic: Help with Petcock differences

[FfejCB500four]

In my effort to fit a cb750 supersport tank to my cb500 i have hit my first obstacle..
i cant seem to get the right petcock for my tank.. i have purchased now two petcocks one for a 78 CB550 and one for a 77 CB750 supersport, both turned out to be the exact same and dont fit the bung on my tank as the nut on both petcocks are two small..
so i need a petcock with the bigger nut to fit over the bung on my tank...

i have used the search function and haven't been able to find the answer im looking for..

does anyone know which petcock i should be looking for?.. do the 75-76 models use a bigger nut for the petcock?

does anyone have the one im looking for?...

and finally does anyone need one of the petcocks i have purchased but dont need?

thanks in advance
would really like to get the tank sorted
Jeff

[wardenerd]

i have a 22 mm i bought by mistake.  There are 2 sizes I know of 22 and 20mm.  its new and unused let me know.

[FfejCB500four]

Hi, i would be interested as long as it fits.. how much would you like for it?
could you post a pic so i can see which one it is?
thanks
Jeff