Hi everyone, I have a Toro/wheel horse 12-32xl law tractor. It has a 12 hp, single cylinder Briggs and Stratton power built engine.
The tractor starts right up, stays running and doesn't smoke at all but it pops when running. runs better with a little choke but with the setup with the throttle and choke I cant run it with the choke on because the choke is built in to the throttle adjustment. seems like its not getting enough fuel but I know it is because when I drop the bowl the gas pours in, checked the vent in the gas cap, change fuel line route and replaced fuel filter. I tried the sea foam trick down the carb twice and hasn't gotten any better. cleaned the carb twice(thought I missed something the first time) but nothing is working. when I restricted the air flow going into the carb I got a low idle but no high end power, remove the restriction and I get no idle and popping at any engine speed.
*the breather tube going into the air cleaner casting is broken and sucking in air from outside the air cleaner, could this cause the issue?