Topic: 1976 cb550f petcock

[erdoc98]

any suggestions on how to stop a leak at my petcock on the supersport?  it just drip...drip...drips away.   driving me crazy.  thought i would get some input before i try to seal it up again. 

thanks

[Gordon]

Where at the petcock?  At the top where it meets the tank, at the bottom where the fuel line connects, or somewhere in-between?

[Jay B]

Welcome. Like Gordon said, a little more info would help. There's unbeleivable info here, but you gotta help out.

[erdoc98]

i suspect that it is leaking at the tank where the petcock threads onto the bottom.  i have also noticed some gas around the dial portion of the petcock that switches between on/off/reserve.  when i overtighten the two screws on the dial it makes it hard to adjust the petcock.  this is a different design than i have encountered on the cl350 or the cb750 petcocks.  is there a specific size washer or o-ring that i can purchase to fix the problem? 

thanks for the input from all you guys.  this is just a fantastic forum and i had forgotten how much info there is here.  the old hondas (and other early 70's bikes) are worth the time and effort.

john