Engine Troubleshooting - Husqvarna LC 151 Operator's Manual

1. Push the clips on the air filter cover.
2. Carefully remove the air filter cover (A) from the
engine.
3. Remove the air filter (B). (Fig. 37)
4. Examine the air filter for damages. Replace a
damaged air filter.
5. Clean and examine the air filter. Refer to
the air filter on page 14 .
6. Install in the opposite sequence.
To clean the air filter
A dirty air filter can cause the engine to be damaged or
not operate correctly. Do maintenance on the air cleaner
more frequently in dusty conditions.
Maintenance schedule on page 12 for information
See
about when to replace the air filter.
1. Remove the air filter cover and remove the filter.
2. Clean the filter by hitting it against a flat surface. Do
not use solvent with petroleum, kerosene or
compressed air to clean the filter.
Note: Air filters in operation for a long time cannot be
cleaned fully. Replace the air filter at regular
intervals. Damaged air filters must always be
replaced.
3. When you assemble the air filter, make sure that it
fully seals against the filter holder.
To do a check of the side discharge
deflector
The side discharge deflector is attached to the side
discharge opening of the product. It decreases the risk
of objects to eject in the direction of the mow position of
the operator.
Problem
The engine does not start.
14
To clean

Engine troubleshooting

Possible cause
The ignition cable is not connected cor-
rectly.
The fuel tank is empty.
The fuel is old.
There is dirt in the carburetor or fuel line. Clean the carburetor and/or fuel line.
The spark plug is defective.
There is fuel on the spark plug.
1. Make sure that the side discharge deflector is not
damaged.
2. Examine the side discharge deflector. Make sure
that you do not see defects, such as cracks or
broken springs that push the door to close.
3. Replace the side discharge deflector or the springs if
they are damaged.
To examine the fuel system
• Examine the fuel tank cap and the seal for the fuel
tank cap to make sure that there are no damages.
• Examine the fuel hose to make sure that there are
no leaks. If the fuel hose is damaged, let a service
agent replace it.
To adjust the clutch wire (LC 151S, LB
256SP)
For the situations that follow, it is necessary to decrease
the length of the clutch wire:
• The drive of the wheels does not engage when you
pull the drive bail or the speed control lever.
• The product moves slowly when the drive of the
wheels is engaged.
For the situations that follow, it is necessary to extend
the length of clutch wire:
• The product moves when the drive of the wheels is
not engaged.
• Adjust the clutch wire.
a) To decrease the length of clutch wire, turn the
adjuster screw counterclockwise.
b) To extend the length of the clutch wire, turn the
adjustment screw clockwise. (Fig. 38)
If the product continues to drive unsatisfactory after the
adjustment, speak to you servicing dealer
Solution
Connect the ignition cable to the spark
plug.
Fill the fuel tank with correct fuel type.
Drain the fuel tank and the carburetor.
Refuel with new gasoline.
Adjust the electrode gap, clean or re-
place the spark plug.
Clean the spark plug.
1566 - 001 - 16.09.2020