Engine will not crank
1. Safety switch button not depressed
Engine cranks but will
For repairs beyond those listed in the Trouble-Shooting chart above, please contact an authorized
service dealer or call Yard-Man Customer Service at 1- (330) 220-4MTD (4683) or 1- (800)-800-7310.
Battery installed incorrectly
Battery dead or weak.
Blown fuse or circuit breaker
Engine ground wire loose.
Throttle/choke not in starting position.
No fuel to the carburetor
Fuel line or in-line fuel filter plugged
No spark to spark plug
Faulty spark plug
Dirty air cleaner
Engine oil has been overfilled
Dipstick not seated or broken
Engine loses crankcase vacuum
There are two switches in the starting
circuit of your unit. Make sure that the
actuator is fully depressing both switch
buttons. Brake pedal must be depressed
and blade engagement pedal disengaged.
Install the battery with negative terminal
attached to the black ground wire. Attach
the positive terminal to the red wire which
goes to the solenoid. Charge the battery
fully before installation.
Check fluid level in battery. If fluid level is
low, fill to just below split rings with water.
Charge with 6 Amp. charger until fully
charged. If this does not work, replace
Replace fuse following instructions on
Make sure the black ground wire runs from
engine to frame or mounting bolt.
Check owner's guide for correct position
for throttle control/choke for starting.
Gasoline tank empty. Fill with gasoline.
Remove and clean fuel line. Replace filter if
Spark plug lead disconnected. Connect
lead. Hold spark plug lead away from
engine block about 1/8". Crank engine.
There should be a spark. If not, have
engine repaired at authorized engine
To test, remove spark plug. Attach spark
plug lead to spark plug. Ground the spark
plug body against the engine block. Crank
the engine. The spark plug should fire at
the electrode. Replace if it does not.
If the air cleaner is dirty, the engine may
not start. Clean or replace as
recommended by the engine
Check oil level.
Replace defective part.
Engine breather defective. Replace.