My snowblower engine barely runs. I can’t get at the air intake, so I’m wondering if draining all the fuel out of the fuel tank, putting Sea Foam in tank and cranking the engine (has an electric starter) to get Sea Foam into carb would work? Or is it the same as putting Sea Foam into air intake of running engine until it quits, waiting 15 minutes, then restarting engine? I used the Sea Foam into the air intake on neighbor’s malfunctioning lawnmower and it worked like a charm. Looking forward to hearing from you.