Questions about a leaking Honda petcock .

[LonesomeTriZ]

I just tried to fire my 84 Honda 110 and gas poured out of the petcock. I thought it was the flattened O ring between the petcock and the bowl. After I replaced it I noticed the fuel was coming out of the petcock itself. I found them on Evilbay but I would prefer to just repair the one I have if possible. I have a couple of ideas to correct this issue but before I tare this thing up I was hoping for some ideas from someone who has dealt with this before. Because it is riveted together I want to make sure I get it right the first time.

[dougspcs]

I've seen a couple guys drill the rivets out, clean and replace the decayed oring inside..

It not tough..me, I'd just buy a replacement.

I think there may even be a YouTube video or two on the subject.

[LonesomeTriZ]

That was one hting I wondered. I di dnot know if there was a single whole O ring or the three hole gasket I have seen in others. I will check youtube, I did not thin of that.

[volfan537240]

Drill the rivets and replace the gasket and replace the rivets with ss screws. I just did this on the Clark tank I got from you. It was stopped up with crud.

[LonesomeTriZ]

That is h plan. I just got the bit I need.

[LonesomeTriZ]

This started out really well. Then the drill got away from me and drilled down into the fuel path. Yep, that one is junk now. But wait, I just happen to have a small drawer full of carb parts. The other 110 carb I had was junk. So I kept some pieces off of it. I just happen to have another petcock. It was gunked up pretty bad though. So I ran a drill bit down the fuel paths and cleaned them out. I did the same for the other holes and used a wire wheel on my Dremel to clean it up. I drill the holes for the new screws a bit more carefully this time and it worked out great. The tap was doing more harm than good so I just used the screws to make the threads. Worked perfectly. The new screws hold the retaining plate nice and flat. Once I reassemble it I will install it on the carb and try to get some fuel to the carb again.

[Big G]

I need to do the same to a couple of spare leaking petcock's I have. I haven't taken them apart yet. What's on the inside as far as gaskets? Are they O-rings? Did you replace them...any recommendations?

[LonesomeTriZ]

It has the four hole gasket. I had two to chose from so I used the better of the two.

[JasonB]

so heres a question for you. My gf's 250sx has a leaky petcock and the bottom of the little bowl on it has a nut molded on it for an 8mm socket. I tightenned it up and the leak slowed down but I didnt loosen it to open the petcock. Do your petcocks have that on the bottoms, or do I have some generic one on there?

[LonesomeTriZ]

Are you referring to the drain plug on the carb bowl? If not, if you are refferring ot that small bowl I have seen on som petcocks then it sound slike you need a new seal. Just match it up with a new O-ring.

[LonesomeTriZ]

Oh, by the way, this 110 now runs great. It started up for the first time in who knows how many years. I had to switch around the fuel lines because I cut one too short. In the process I broke one of the brand new fuel filters. Once I fix that I can ride it for the first time.

[volfan537240]

Sweet man

[LonesomeTriZ]

I still need plastic and other stuff. But things are looking better now that i know it runs.

[Jason125m]

so heres a question for you. My gf's 250sx has a leaky petcock and the bottom of the little bowl on it has a nut molded on it for an 8mm socket. I tightenned it up and the leak slowed down but I didnt loosen it to open the petcock. Do your petcocks have that on the bottoms, or do I have some generic one on there?

All es / sx petcocks have this little bowl. All you need to do is put a new o ring on there!

[LonesomeTriZ]

What he said.