Have Craftsman lawn tractor Model 917.288562 with Briggs and Stratton, two cylinder 24HP, Model 4456 77 2188 GS engine. While mowing the engine popped and blew a small amount of dark smoke out the exhaust pipe. The engine starts and runs but is noisey. I checked the plugs and found one fouled. The new plug immediately became fouled. I checked the compression and read a 170 PSI on the good cylinder and 150 on the defective cylinder. What should I do next to determine what is wrong with the engine?
Thanks
Deanna's husband Sam
Thanks
Deanna's husband Sam