MTD 112-518R000 - Manual (Page 16)

TROUBLE SHOOTING GUIDE
Trouble Possible Cause(i ) Corrective Action
Engine fails to start 1. Blade control h andle disengaged.
2. Spark plug wire disconnected.
3. Throttle control lever not in CHOKE
or START posi ion.
4. Fuel tank empt /, or stale fuel.
5. Blocked fuel lire.
6. Faulty spark pi jg.
7. Engine floodec.
1. Engage blade control handle.
2. Connect wire to spark plug.
3. Move throttle lever to CHOKE or
START position.
4. Fill tank with clean, fresh gasoline.
5. Clean fuel line.
6. Clean, adjust gap or replace.
7. Remove spark plug, dry the plug, and
crank engine with plug removed and
throttle in off position. Replace spark
plug, connect wire and resume starting
procedures.
Engine runs erratic 1. Unit running in START position
2. Spark plug wins loose.
3. Blocked fuel lir e or stale fuel.
4. Vent in gas cap plugged.
5. Water or dirt in fuel system.
6. Dirty air cleane r.
7. Carburetor out of adjustment.
1. Move throttle lever to FAST position
2. Connect and tighten spark plug wire.
3. Clean fuel line; fill tank with clean,
fresh gasoline.
4. Clear vent.
5. Drain fuel tank. Refill with fresh fuel.
6. Clean air cleaner.f
7. Adjust carburetor.t
Engine overheats 1. Engine oil leve low.
2. Air flow restrict sd.
3. Carburetor not adjusted properly.
1. Fill crankcase with proper oil.
2. Remove blower housing and clean.t
3. Adjust carburetor.t
Occasional skip
(hesitates) at high speed
1. Spark plug gaf too close.
2. Carburetor idle mixture adjustment
improperly set.
1. Adjust gap to .030”.
2. Adjust carburetor.t
Idles poorly 1. Spark plug fou ed, faulty or gap too wide.
2. Carburetor improperly adjusted.
3. Dirty air cleane r.
1. Reset gap to .030” or replace spark plug.
2. Adjust carburetor.t
3. Clean air cleaner.f
Excessive vibration 1. Cutting blade I oose or unbalanced.
2. Bent cutting bl ide.
1. Tighten blade and adapter.
Balance blade.
2. Replace blade.
Mower will not
discharge grass 1. Engine speed :oo low.
2. Wet grass.
3. Excessively hi jh grass.
1. Set throttle between 3/4 and full throttle.
2. Do not mow when grass is wet; wait until
later to cut.
3. Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting swath (1/2 width).
Uneven cut 1. Wheels not pc sitioned correctly.
2. Dull blade.
1. Place all four wheels in same
height position.
2. Sharpen or replace blade.
fRefer to separate engine manual packed with yoi r unit.
Note: For repairs beyond the minor adjustments listed above, contact your local authorized service dealer.
FOR REPLACEMENT PARTS, CONTACT:
SERVICE DEPARTMENT • P.O. BOX 360900 • CLEVELAND, OHIO 44136