So I am nearing the final few days of my RYCA build I had the bike running today.  It ran briefly but now I can't start it back up.  I am in the process of trouble shooting that problem.

The question I have for all of you is that I notice gas leaking from around the two screws on my Raptor Petcock...So I replace the two screws with new stainless ones each with a soft o-ring.  I was hoping that the o-ring would create a tight seal around the screw head, but I was wrong.  It still leaks.

Has anyone had a problem like this?

Here are some of my thoughts about the issue:
-Maybe it has something to do with when I had the tank painted?  Paint got in the threads of the petcock mounting holes.  It doesn't seem that would matter, but its just a thought.

-Maybe I should try a metal washer, instead of a soft o-ring, with the screws. the stock screws had metal washers and it was still leaking.

-Maybe the seal on the Raptor that goes up against the outside bottom of the tank is bad?  It didn't appear to be damaged at all.


Anyone have any ideas for me?

Thanks.

I can't remember if on the stock tank with factory paint job if the footprint of where the petcock mounts to the underside of the tank is painted.  Should that oval area be painted or bare metal?

If your painted area is flat & the paint isnt looking "attacked",, I guess its okay,,

Thats just a little bolt, shouldnt need to be too tight, thats what the O-ring is for, I cant remember anyone else having this problem,,
Can you pop a website up that has a pic of the petcock you have?

You can see the o ring that is supposed to create the seal. This is puzzling.

Maybe I grabbed the wrong two screws and they seem like they fit but they are actually too small. That could explain how gas is leaking around the threads and down to the screw head.

The screws are supposed to have a sealing washer too.

Verslagen, you are correct, the stock screws have a sealing washer. see pictures below.  Stock screws with metal washers are on the left and the new replacement screws with the soft o-rings are on the right. Also note that the metal washers on the stock screws do not come off, they can move freely, but the can't be taken off the shaft.

I would be inclined to try the new screws with metal sealing washers but I figured since the stock screws with metal sealing washers were leaking, there is no point.  The failure is probably with the petcock or tank hole.  Does anyone agree?





I tried to get a pic of the underside of the tank too but it's difficult angle.

I knew that rust on the stock screws seemed a bit fishy!  

That must have been the previous owner because this is the first time I have had any of these pieces apart.  

Verslagen what washers on the case are you referring to?  

Also, this is an amateur question, are sealing washers different than a standard washer?  (Thicker, thinner, softer, harder)

Should I be looking for a certain type of material for instance copper, brass, stainless steel?

Thanks.