I have a 12A-18M7002 MTD Yard Man Self Propelled 173cc OHV mower.
This model has the Kohler engine.
It is difficult to start but will eventually start and run terribly.
It spits and sputters.
I have:
Changed the spark plug
Drained the gas, cleaned out the tank and used new gas
Took the original carburetor off and cleaned all the passages.
Swapped the carburetor for a known working one.
Checked the muffler to ensure it wasn't clogged.
The automatic choke works as I see it adjusting the carburetor as the motor tries to stabilize itself.
The coil must have spark as the engine does start, but runs terribly.
I don't want to throw a new carburetor or coil at it without knowing what is wrong.
There were a couple of times that it actually started easily and ran fine, but the symptoms have recurred.
Any ideas?
Thanks
This model has the Kohler engine.
It is difficult to start but will eventually start and run terribly.
It spits and sputters.
I have:
Changed the spark plug
Drained the gas, cleaned out the tank and used new gas
Took the original carburetor off and cleaned all the passages.
Swapped the carburetor for a known working one.
Checked the muffler to ensure it wasn't clogged.
The automatic choke works as I see it adjusting the carburetor as the motor tries to stabilize itself.
The coil must have spark as the engine does start, but runs terribly.
I don't want to throw a new carburetor or coil at it without knowing what is wrong.
There were a couple of times that it actually started easily and ran fine, but the symptoms have recurred.
Any ideas?
Thanks