My 1968 B&S 3.5 HP lawnmower engine (92902, pulsajet carb with two fuel pickup tubes) will not start unless I remove the air filter; nor will it start with just the air cleaner bolt installed without the air filter. I have serviced the carb and replaced the gasket. I have checked and am certain that the bolt is not interfering with the movement of the manual choke.
Anyone experienced this problem?
Davy