Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Make and model number of the engine? Single cylinder or a twin engine?
Twin Briggs, run a cylinder balance test. Loosen the spark plug wires, then with engine idling, remove one wire at a time, engine should continue to run. If engine dies when one wire is removed, the opposite cylinder is not firing. If that is the case, does the cylinder have spark? Does it have compression? If it is not firing and has spark and compression, check the valves, you can have a pushrod off. These engines run really well on just one cylinder, but shows as surging and low power.
Me neither. Do the cylinder balance test! Did you see my response above?
Have you ran cylinder test?
I will be here tomorrow!
I see question is still open, did you find problem?