Toro Groundsmaster 120 Operator's Manual page 37

PROBLEM
Engine will not start, starts hard, or g ,
fails to keep running. f il t k i
Engine loses power. g
Engine overheats. g
Abnormal vibration.
Machine does not drive.
POSSIBLE CAUSES
,
1. Operator is not seated.
2. Parking brake is off.
3. Fuel tank is empty.
4. Choke is not on.
5. Air cleaner is dirty.
6. Spark plug wire is loose or
disconnected.
7. Spark plug is pitted, fouled, or
gap is incorrect.
8. Dirt in fuel filter.
9. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Air cleaner is dirty.
3. Oil level in crankcase is low.
4. Cooling fins and air passages
under engine blower housing
are plugged.
5. Spark plug is pitted, fouled, or
gap is incorrect.
6. Vent hole in fuel cap is
plugged.
7. Dirt in fuel filter.
8. Dirt, water, or stale fuel is in
fuel system.
1. Engine load is excessive.
2. Oil level in crankcase is low.
3. Cooling fins and air passages
under engine blower housing
are plugged.
1. Engine mounting bolts are
loose.
2. Loose engine pulley, idler
pulley, or blade pulley.
3. Engine pulley is damaged.
1. Traction belt is worn, loose or
broken.
2. Traction belt is off pulley.
37
CORRECTIVE ACTION
1. Sit on seat.
2. Move parking brake to on.
3. Fill fuel tank with gasoline.
4. Move choke lever to on.
5. Clean or replace air cleaner
element.
6. Install wire on spark plug.
7. Install new, correctly gapped
spark plug.
8. Replace fuel filter.
9. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Clean air cleaner element.
3. Add oil to crankcase.
4. Remove obstruction from
cooling fins and air passages.
5. Install new, correctly gapped
spark plug.
6. Clean or replace the fuel cap.
7. Replace fuel filter.
8. Contact Authorized Service
Dealer.
1. Reduce ground speed.
2. Add oil to crankcase.
3. Remove obstruction from
cooling fins and air passages.
1. Tighten engine mounting bolts.
2. Tighten the appropriate pulley.
3. Contact Authorized Service
Dealer.
1. Adjust belt tension, replace
belt.
2. Contact Authorized Service
Dealer.