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ITEM 62548
Sa
FET
y
SET
up
Op
Era
Ti
O
n
Main
TE
nan
CE
problem
possible Causes
probable Solutions
Engine misfires
1. Spark plug cap loose.
2. Incorrect spark plug gap or
damaged spark plug.
3. Defective spark plug cap.
4. Old or low quality gasoline.
5. Incorrect compression.
1. Check wire connections.
2. Re-gap or replace spark plug.
3. Replace spark plug cap.
4. Use only fresh 87+ octane unleaded
gasoline treated with fuel stabilizer.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Diagnose and repair compression.
(Use
Engine will not start:
COMprESSiOn rELaTED
section.)
Engine stops
suddenly
1. Fuel tank empty or full of impure or low
quality gasoline.
2. Low oil shutdown.
3. Defective fuel tank cap creating vacuum,
preventing proper fuel flow.
4. Faulty magneto.
5. Disconnected or improperly
connected spark plug cap.
1. Fill tank with fresh 87+ octane unleaded
gasoline treated with fuel stabilizer.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Fill engine oil to proper level.
Check engine oil before EVERY use.
3. Test/replace fuel tank cap.
4. Have qualified technician service magneto.
5. Secure spark plug cap.
Engine stops when
under heavy load
1. Dirty air filter
2. Engine running cold.
1. Clean element.
2. Allow engine to warm up prior
to operating equipment.
Engine knocks
1. Old or low quality gasoline.
2. Engine overloaded.
3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical problems.
1. Refuel with fresh 87+ octane unleaded
gasoline treated with fuel stabilizer.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Do not exceed equipment’s load rating.
3. Have qualified technician
diagnose and service engine.
Engine backfires
1. Impure or low quality gasoline.
2. Engine too cold.
3. Intake valve stuck or overheated engine.
4. Incorrect timing.
1. Refuel with fresh 87+ octane unleaded
gasoline treated with fuel stabilizer.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Use cold weather fuel and
oil additives to prevent backfiring.
3. Have qualified technician
diagnose and service engine.
4. Check engine timing.
Engine labors or
stalls when tilling
1. Throttle set too low.
2. Tilling at too great a depth.
1. Adjust throttle to increase Engine speed.
2. Lower Drag Bar and adjust Wheels
as needed for shallower tilling.
Excessive shaking/
Tiller difficult
to control
1. Ground too hard and/or dried out.
2. Drag Bar/Wheels set too
deep for soil conditions.
1. Wet the ground prior to tilling.
2. Lower Drag Bar and adjust Wheels
as needed for shallower tilling.
Engine runs, Tiller
does not move
1. Forward OR Reverse Clutch
Lever not engaged.
2. Tension on Forward and/or Reverse
Clutch Belt is incorrect.
3. Protective output shaft key has
sheared off.
1. Engage Forward OR Reverse Clutch Lever.
2. Adjust Forward and/or Reverse
Clutch Cable.
3. Have qualified technician install
new output shaft key.
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
