Troubleshooting - MTD Series 020 Operator's Manual

SECTION 6: TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start
Engine runs erratic
1. Spark plug wire disconnected.
2. Fuel tank empty or stale fuel.
3. Throttle control lever (if so equipped)
not in correct starting position.
4. Choke not in CHOKE position.
5. Blocked fuel line.
6. Faulty spark plug.
1. Spark plug wire loose.
2. Unit running on CHOKE.
3. Blocked fuel line or stale fuel.
,
5.
6.
1.
1.
2.
3.
1.
1. Connect wire to spark plug.
2. Fill tank with clean, fresh gasoline.
3. Move throttle lever to FAST position.
4. Move choke to CHOKE position.
5. Clean fuel line.
6. Clean, adjust gap, or replace.
1. Connect and tighten spark plug wire.
2. Move choke lever (if equipped) to OFF
position.
3. Clean fuel line; fill tank with clean, fresh
gasoline
4. Drain fuel tank. Refill with fresh fuel.
5. Clean or replace air cleaner.
6. See authorized service dealer.
Water or dirt in fuel system.
Dirty air cleaner.
Carburetor out of adjustment.
Loose parts or damaged impeller.
Engine oil level low.
Dirty air cleaner.
Carburetor not adjusted properly.
Spark plug gap too close.
Too much vibration 1. See authorized service dealer.
Engine overheats 1. Fill crankcase with proper oil.
2. Clean or replace air cleaner.
3. See authorized service dealer.
Occasional skip (hesitates) 1. Adjust gap to .030".
at high speed
Unit does not discharge 2. 1.
Rate of discharge slows
considerably or
composition of discharged
material changes.
1. Low engine RPM.
2. Chipper blade dull.
Stop engine immediately and
disconnect spark plug wire. Clean flail
screen and inside of discharge opening.
2. Stop engine and disconnect spark plug
wire. Remove lodged object.
3. Always run engine at full throttle.
4. Empty bag.
1. Always run engine at full throttle.
2. Replace chipper blade or see your
authorized service dealer.
NOTE: For repairs beyond the minor adjustments fisted above, contact your nearest authorized service dealer.
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