Petcock rebuilding

[Dave K]

I currently have the original petcock off of my 175. It just doesn't flow enough fuel and in about 4 miles I the engine will starve for gas and die. Anyrate, when you take the petcock apart, you will see that there are 2 holes on the lever inside face that will mate up to 2 holes on the main body of the petcock. Is the gasket material between the lever and main body made of cork or rubber. Also, when you have a  petcock that will leak fuel through it, even when the petcock is off, is it because the nut that holds on the petcock lever could be snugged up a little? This nut has 2 holes in that a snap ring tool can bite so you can turn it loose or tight. Also, the main fuel pipe that extends up into the tank is cracked full length. Is it swedged into the base of the petcock? Can I drill out what is left of the cracked pipe and press in a new one? This petcock seems fairly simple and I am sure that it can be rebuilt.

[old smokey]

I'm only assuming the reserve stand pipe material is the same between the 175 and 350. On my 350 it broke off at the base years ago. It also has signs of having a crack running up the length of it.
Once I found out that an aftermarket petcock often used on Harleys could be adapted to the 350, I started pursuing that route. The stand pipe appears to be brass, which is something that could be soldered (similar to sweating copper pipes for plumbing). On the 350, it appears to be 5 mm o.d. material, which I couldn't find anywhere in a small quantity to purchase. And from the appearance of my 350, it looks like the brass tube is a press fit into the petcock.