runs only half/choked 3.5 briggs

[bayaa]

I have a 3.5 briggs and it will only stay running with the choke half way choked does any body know why

thanks

[Bob Minney]

carb mixture setting
or
hole in carb diaphram

[bayaa]

by chance could you explain how to replace the diaphram?

[Bob Minney]

Its in the carb-send me the model # off the engine and I can give better instructions.

[Pelican]

Another possibility is dirt in the jets, requires disassembly and cleaning.