Toro Multi-Pro 1200 Operator's Manual page 41

Problem
The engine runs, but knocks or
misses.
The engine will not idle. g
The engine overheats.
The sprayer will not operate or is
sluggish in either direction
because the engine bogs down or
stalls.
Abnormal vibration or noise.
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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. Engine overheating.
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 parking brake is set.
1. The engine mounting bolts are
loose.
2. There is a problem with the
engine.
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. Clean with every use.
5. Contact your Authorized
Service Dealer.
1. Release the parking brake
1. Tighten the engine mounting
bolts.
2. Contact your Authorized
Service Dealer.