Page 21For technical questions, please call 1-888-866-5797.ITEM 58169
SAFETYSETUPOPERATIONMAINTENANCE
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/oil mixture.
5. Incorrect compression.
1. Check cap and wire connections.
2. Re-gap or replace spark plug.
3. Replace spark plug cap.
4. Use fresh 87+ octane stabilizer-treated
unleaded gasoline/2-cycle oil mixture only.
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/oil mixture.
2. Defective breather valve creating vacuum,
preventing proper fuel flow.
3. Faulty magneto.
4. Disconnected or improperly
connected spark plug cap.
1. Fill tank with fresh 87+ octane stabilizer-
treated unleaded gasoline/2-cycle oil mixture.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Test/replace breather valve.
3. Have qualified technician service magneto.
4. 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/oil mixture.
2. Engine overloaded.
3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical problems.
1. Refuel with fresh 87+ octane stabilizer-
treated unleaded gasoline/2-cycle oil mixture
.
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 labors
or stalls when
cultivating
1. Engine speed too low.
2. Cultivating at too great a depth.
1. Adjust throttle to increase Engine speed.
2. Adjust Axle/Drag Bar Assembly in working
position as needed for shallower cultivating.
Excessive
shaking/Cultivator
difficult to control
1. Ground too hard and/or dried out.
2. Axle/Drag Bar Assembly not
correctly set for soil conditions.
1. Wet the ground prior to cultivating.
2. Adjust Axle/Drag Bar Assembly in working
position as needed to achieve correct setting.
After sudden
impact, Engine
runs but Tines
do not rotate
Shaft key or other shear pin
broken by impact to disconnect
Engine and limit damage.
Have qualified technician check and replace
broken shaft key or other shear pins.
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
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