Topic: Petcock woes -> '71 CB500 K0

[dkruitz]

OK, I've changed out all the rubber on my petcock and replaced the bowl as it had a pinhole leak.
It still drips fuel out the lines, and wants to fill the crankcase.  I tried using emery cloth and a smooth surface to lower the height of petcock where the petcock lever mounts - in efforts to have it squeeze the inside rubber tighter - to no avail.

Am I on the right line, or should I just bite the bullet and get a new petcock?

[dkruitz]

 Can petcocks be "reconditioned"?  Any idea's why it won't seal with new rubber?

[drackett_19]

If its anything like the one on my cb550, you might want to replace the fiber washers that the mounting screws go through. The new petcocks don't come with these washers. I found that out when I bought a brand new petcock and my bike still leaked. It quit leaking after swapping out those washers with some new ones.

[dkruitz]

Thanks, I'll check it out - never even thought of those!