I have recently had to replace my fuel petcock and the only one I found that fits the tank was a single exit one. No problem, I thought, I'll simply use a T piece to connect the reserve side of the line to the main fuel hose. Since there isn't a direct route which doesn't make the hose kink I have to have a piece of hose looping around from the petcock to the carb inlet. Without the reserve line from the other side of the tank plumbed in, this works fine. However, I guess when the reserve line is plumbed in it is taking the pressure away from the fuel as it flows from the tank, around the loop and into the carb because with the petcock on it doesn't start and idle, it only runs when I have the second reserve petcock from the left hand side of the tank switched on. This is my current setup: Has anyone else had to replace the original twin outlet petcock and had this issue?
