Leaky Fuel petcocks

[Peter Cooke]

One of the European dealers was advertising petcocks that they guaranteed not to leak.

[montij]

I’ll take a look for those. Today I spent a lot of time attempting to repair the ones I have. I lapped them lightly by hand with grease mixed valve grinding compound and then used toothpaste. These were the only materials I had available. Afterwards I added washers for a much tighter fit. Have not tested them with fuel yet. I have 4 petcocks in total 2 originals and 2 from VTwin. All I really need is one reliable one to use on the main right side tank.

[montij]

As Merdog1968 mentioned, I also use Viton Flouro. Brown O-rings in petcock valves to stop fuel leakage. I've Been using them well over 25 years now and they work great. However ,They do need replacement overtime like any O-ring, Gasketing material or seal.
Duke

I don’t have the machining ability to machine the groove for the o rings you mention. Amateur enthusiast here.

[montij]

O rings stop valve from dripping ,but gas will still not completely shut off. A little EZ-Turn on valve before assembly helps.

I had not heard of this product before.
Thank you for mentioning it I’m going to buy some.

[Rich Simpson]

Lather the peacocks up with Easy turn lube..