Troubleshooting - Toro 74812 Operator's Manual

Troubleshooting

Problem
The engine overheats.
The starter does not
crank
The engine will not start,
starts hard, or fails to
keep running.
Possible Cause
1. The engine load is excessive.
2. The oil level in the crankcase is
low.
3. The cooling fins and air
passages under the engine
blower housing are plugged.
4. The air cleaner is dirty.
5. Dirt, water, or stale fuel is in fuel
system.
1. The blade control switch is
engaged.
2. The motion control levers are not
in the park position.
3. The operator is not seated.
4. The battery is dead.
5. The electrical connections are
corroded or loose.
6. A fuse is blown.
7. A relay or switch is damaged.
1. The fuel tank is empty.
2. The choke is not on.
3. The air cleaner is dirty.
4. The spark plug wire(s) is loose or
disconnected.
5. The spark plug(s) is pitted, fouled,
or the gap is incorrect.
6. There is dirt in fuel filter.
7. Dirt, water, or stale fuel is in fuel
system.
8. There is incorrect fuel in the fuel
tank.
9. The oil level in the crankcase is
low.
Corrective Action
1. Reduce ground speed.
2. Add oil to the crankcase.
3. Remove the obstruction
4. Clean or replace the air
5. Contact an Authorized
1. Move the blade control
2. Move the motion control
3. Sit on the seat.
4. Charge the battery.
5. Check the electrical
6. Replace the fuse.
7. Contact an Authorized
1. Fill the fuel tank.
2. Move the choke lever to
3. Clean or replace the air
4. Install the wire(s) on the
5. Install a new, correctly
6. Replace the fuel filter.
7. Contact an Authorized
8. Drain the tank and replace
9. Add oil to the crankcase.
46
from the cooling fins and
air passages.
cleaner element.
Service Dealer.
switch to Disengaged.
levers outward to the park
position.
connections for good
contact.
Service Dealer.
On.
cleaner element.
spark plug.
gapped spark plug(s).
Service Dealer.
the fuel with the proper
type.