Toro MultiPro 1750 Operator's Manual page 74

Problem
The engine does not idle.
The engine overheats.
The engine loses power.
There is abnormal vibration or noise.
The machine does not operate or is
sluggish in either direction because the
engine bogs down or stalls.
The machine does 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. There is low compression.
8. The air-cleaner element is dirty.
1. The crankcase-oil level is incorrect.
2. There is 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. There is 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 N
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 driveshaft or wheel-hub key has
been damaged.
74
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 Toro
distributor.
5. Contact your authorized Toro
distributor.
6. Contact your authorized Toro
distributor.
7. Contact your authorized Toro
distributor.
8. Clean or replace the element.
1. Fill or drain to the F
2. Reduce the load; use lower ground
speed.
3. Clean with every use.
4. Clean with every use.
5. Contact your authorized Toro
distributor.
1. Fill or drain to the F
2. Clean or replace.
3. Drain and flush the fuel system; add
fresh fuel.
4. See The Engine Overheats.
5. Replace the spark plug.
6. Replace the fuel cap.
7. Contact your authorized Toro
distributor.
1. Tighten the engine mounting bolts.
2. Contact your authorized Toro
distributor.
1. Release the parking brake.
1. Press the brake and shift the range
EUTRAL
selector into a gear.
2. Release the parking brake or check
the linkage.
3. Contact your authorized Toro
distributor.
4. Contact your authorized Toro
distributor.
5. Contact your authorized Toro
distributor.
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