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Troub leshooting
8
15
Problem Cause Remedy
Engine fails to start 1. Dirty air cleaner.
2. Engine needs to be primed.
3. Fuel tank empty.
4. Stale fuel in gasoline tank.
5. Spark plug wire disconnected.
6. Spark plug fouled.
7. Engine flooded.
1. Refer to the Engine Operator’s Manual
2. Push primer bulb two or three times.
3. Fill tank with clean, fresh gasoline.
4. Drain gasoline and refill tank with clean, fresh
gasoline.
5. Connect the spark plug wire to the spark
plug.
6. Clean, adjust gap or replace spark plug.
7. Refer to the Engine Operator’s Manual.
Engine runs erratic 1. Spark plug wire loose.
2. Stale fuel in gasoline tank.
3. Vent in gas cap plugged.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
1. Connect and tighten spark plug wire.
2. Drain gasoline and refill tank with clean, fresh
gasoline.
3. Clear vent of any debris.
4. Drain fuel tank. Refill with fresh fuel.
5. Refer to the Engine Operator’s Manual.
Engine Overheats 1. Engine oil level low.
2. Air flow restricted.
3. Dirty air cleaner.
1. Fill crankcase with proper oil.
2. Clean area around and on top of engine.
3. Refer to the Engine Operator’s Manual.
Occasional skips
(hesitates) at
high speed
1. Spark plug gap too close. 1. Adjust gap. Refer to the Engine Operator’s
Manual for gap specifications.
Idles poorly 1. Spark plug fouled, faulty, or gap too wide.
2. Dirty air cleaner.
1. Reset gap or replace spark plug.
2. Refer to the Engine Operator’s Manual.
Excessive Vibration 1. Edger blade bent or damaged.
2. Blade spindle bent or damaged.
1. Replace edger blade.
2. Contact an authorized MTD service dealer.
Drive-belt Slips 1. Belt worn or stretched. 1. Replace drive belt.