Toro 41568 - Page 41

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Problem Corrective ActionPossible Causes
The engine runs, but knocks or
misses.
1. Dirt, water, or stale fuel is in the
fuel system.
1. Drain and flush the fuel system;
add fresh fuel.
2. A spark plug lead is loose. 2. Reconnect the spark plug lead.
3. A spark plug is broken. 3. Replace the spark plug.
4. Loose wires or poor
connections.
4. Check and tighten wire
connections.
5. The engine is overheated. 5. See Engine Overheats.
The engine will not idle.
1. The fuel tank vent is restricted. 1. Replace the fuel cap.
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2. Dirt, water, or stale fuel is in the
fuel system.
2. Drain and flush the fuel system;
add fresh fuel.
3. A spark plug is damaged or
broken.
3. Replace the spark plug.
4. Carburetor idle passages are
plugged.
4. Contact your Authorized
Service Dealer.
5. The idle speed adjusting screw
is incorrectly set.
5. Contact your Authorized
Service Dealer.
6. The fuel pump is broken. 6. Contact your Authorized
Service Dealer.
7. Low compression. 7. Contact your Authorized
Service Dealer.
8. The air cleaner element is dirty. 8. Clean or replace.
The engine overheats.
1. The crankcase oil level is
incorrect.
1. Fill or drain to the full mark.
2. Excessive loading. 2. Reduce load; use lower ground
speed.
3. The radiator is dirty. 3. Clean with every use.
4. The coolant is low. 4. Add coolant.
5. The fuel mixture is lean. 5. Contact your Authorized
Service Dealer.
The engine loses power.
1. The crankcase oil level is
incorrect.
1. Fill or drain to the full mark.
2. The air cleaner element is dirty. 2. Clean or replace.
3. Dirt, water, or stale fuel is in the
fuel system.
3. Drain and flush the fuel system;
add fresh fuel.
4. The engine is overheated. 4. See Engine Overheats.
5. A spark plug is damaged or
dirty.
5. Replace the spark plug.
6. The vent hole in the fuel tank
vent fitting is plugged.
6. Replace the fuel cap.
7. Low compression. 7. Contact your Authorized
Service Dealer.