Toro 41568 Operator's Manual page 41

Problem
The engine runs, but knocks or
misses.
The engine will not idle. g
The engine overheats.
The engine loses power.
Possible Causes
1. Dirt, water, or stale fuel is in the
fuel system.
2. A spark plug lead is loose.
3. A spark plug is broken.
4. Loose wires or poor
connections.
5. The engine is overheated.
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 radiator is dirty.
4. The coolant is low.
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.
41
Corrective Action
1. Drain and flush the fuel system;
add fresh fuel.
2. Reconnect the spark plug lead.
3. Replace the spark plug.
4. Check and tighten wire
connections.
5. See Engine Overheats.
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. Add coolant.
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.