McCormick Carb Issues

DanB53 · Nov 19, 2012

I didn't change the shafts. The float is origional but is square and has no leaks. I put new gaskets on the shaft from the governer to the throttle butterfly. Starter fluid test confirmed that there are no leaks at any of the connections. When I put my hand over the intake of the carb, theres lots of vacuum. The metering nozzle and gasket was changed.

MIKE R · Dec 7, 2012

Talked to Dan today. He said he gots it running for a few minutes but needed the choke on to stay running. Just thought I would give a update.

DanB53 · Dec 7, 2012

MIKE R said:
Talked to Dan today. He said he gots it running for a few minutes but needed the choke on to stay running. Just thought I would give a update.

That's true. But even then it wouldn't run for more than a few minutes. I found a way to keep it running, I use a clean 2x4 and block off the intake of the carb which forces it to only draw air through the vent right beside the load adjustment. If I do this it will run but only at one speed because of the lack of air. I'm still very confused as to what could be causing this problem because I know I've got sufficient vacuum pressure. I bought another carb for it and it should be here sometime next week. I'll keep you updated