Gjkelley31
New member
Hi everyone, I've got a 1974 Johnson 40hp 40RL74S. The carb was rebuilt which helped needle valve problems, but the top Welch plug install looks really sloppy and I'm not sure if there was a tight seal. What is the size of that plug and does anyone know where to buy them (preferably in person)? I don't want to have to buy another $35 carb kit just for a Welch plug.
Would air leaks at the top plug cause starting and idling problems? When it actually does start (rarely after playing around with the idle screw) it dies after a while and when you put the choke back in.
also, the bottom jet where the bowl plug screw wasn't removed with the special tool. Air gets through fine though. Could that be a problem with the starting?
Thanks!
Would air leaks at the top plug cause starting and idling problems? When it actually does start (rarely after playing around with the idle screw) it dies after a while and when you put the choke back in.
also, the bottom jet where the bowl plug screw wasn't removed with the special tool. Air gets through fine though. Could that be a problem with the starting?
Thanks!