Toro 41177 Operator's Manual page 63

Problem
The engine will not idle.
The engine overheats.
The engine loses power.
Abnormal vibration or noise.
The machine will not operate or is sluggish
in either direction because the engine
bogs down or stalls.
The machine will not operate in either
direction.
Possible Cause
1. The fuel tank vent is restricted.
2. Dirt, water, or stale fuel is in the fuel
system.
3. A spark plug is damaged or broken.
4. Carburetor idle passages are plugged.
5. The idle speed adjusting screw is
incorrectly set.
6. The fuel pump is broken.
7. Low compression.
8. The air cleaner element is dirty.
1. The crankcase oil level is incorrect.
2. Excessive loading.
3. The air intake screens are dirty.
4. The cooling fins and air passages
under the engine blower housing
and/or the rotating air intake screen are
plugged.
5. The fuel mixture is lean.
1. The crankcase oil level is incorrect.
2. The air cleaner element is dirty.
3. Dirt, water, or stale fuel is in the fuel
system.
4. The engine is overheated.
5. A spark plug is damaged or dirty.
6. The vent hole in the fuel tank vent
fitting is plugged.
7. Low compression.
1. The engine mounting bolts are loose.
2. There is a problem with the engine.
1. The parking brake is set.
1. The range selector is in the Neutral
position.
2. The parking brake was not released or
the parking brake is not releasing.
3. The transmission is broken.
4. The control linkage needs adjustment
or replacement.
5. The drive shaft or wheel hub key has
been damaged.
63
Corrective Action
1. Replace the fuel cap.
2. Drain and flush the fuel system; add
fresh fuel.
3. Replace the spark plug.
4. Contact your Authorized Service
Dealer.
5. Contact your Authorized Service
Dealer.
6. Contact your Authorized Service
Dealer.
7. Contact your Authorized Service
Dealer.
8. Clean or replace.
1. Fill or drain to the full mark.
2. Reduce load; use lower ground speed.
3. Clean with every use.
4. Clean with every use.
5. Contact your Authorized Service
Dealer.
1. Fill or drain to the full mark.
2. Clean or replace.
3. Drain and flush the fuel system; add
fresh fuel.
4. See Engine Overheats.
5. Replace the spark plug.
6. Replace the fuel cap.
7. Contact your Authorized Service
Dealer.
1. Tighten the engine mounting bolts.
2. Contact your Authorized Service
Dealer.
1. Release the parking brake.
1. Press the brake and shift the range
selector into a gear.
2. Release the parking brake or check the
linkage.
3. Contact your Authorized Service
Dealer.
4. Contact your Authorized Service
Dealer.
5. Contact your Authorized Service
Dealer.