Husqvarna Complete Guide to Lawn Mower Parts, Spark Plug Chart, and Troubleshooting

PROBLEM

Will not start

Hard to start

Engine will not turn over

Engine clicks bat will not start

Loss of power

TROUBLESHOOTING

POINTS

CAUSE

CORRECTION

1.

Out of fuel.

1.

Fill fuel tank.

2.

Engine

not"CHOKED"

properly.

2.

See "TO START ENGINE"

in Operation section.

3.

Engine

flooded.

3.

Wait several

minutes before attempting to start.

4.

Bad spark

plug.

4.

Replace

spark

plug.

5.

Dirty

air

filter.

5.

Clean/replace

air

filter.

6.

Dirty

fuel filter.

6.

Replace

fuel

filter.

7.

Water

in fuel.

7.

Drain fuel tank and carburetor,

refill

tank with fresh

gasoline and replace fuel filter.

8.

Loose

or damaged

wiring.

8.

Check

all wiring.

9.

Carburetor

out

of adjustment.

9.

See Engine

Manual.

10.

Engine valves out of adjustment.

10.

Contact

an

authodzed

service

center/department.

11.

Extreme

cold

conditions.

11.

See "To start

engine"

in operation section.

1.

Dirty

air

filter.

1.

Clean/replace

air

filter.

2.

Bad spark

plug.

2.

Replace

spark

plug.

3.

Weak

or dead

battery.

3.

Recharge

or

replace

battery.

4.

Dirty

fuel filter.

4.

Replace

fuel

filter.

5.

Stale

or

dirty

fuel.

5.

Drain fuel tank and refill with fresh gasoline.

6.

Loose

or

damaged

wiring.

6.

Check

all wiring.

7.

Carburetor

out

of adjustment.

7.

See Engine

Manual.

8.

Engine valves out of adjustment.

8.

Contact

an

authodzed

service

center/department.

1.

Brake

pedal

not

depressed.

1.

Depress

brake

pedal.

2.

Disengage

attachment

clutch.

2.

Attachment

clutch

is engaged.

3.

Recharge

or

replace

battery.

3.

Weak

or dead

battery.

4.

Replace

fuse.

4.

Blown

fuse.

5.

Clean

battery

terminals.

5.

Corroded

battery

terminals.

6.

Check

all wiring.

6.

Loose

or damaged

wiring.

7.

Checkheplace

ignition

switch.

7.

Faulty

ignition

switch.

8.

CheckJreplaca

solenoid

or

starter.

8.

Faulty

solenoid

or

starter.

9.

Contact

an

authodzed

service

center/department.

9.

Faulty

operator

presence

switch(es).

1.

Weak

or dead

battery.

1.

Recharge

or

replace

battery.

2.

Corroded

battery

terminals.

2.

Clean

battery

terminals.

3.

Loose

or

damaged

wiring.

3.

Check

all wiring.

4.

Faulty

solenoid

or

starter.

4.

CheckJreplaca

solenoid

or

starter.

1.

Cutting

too much grass/too

fast.

1.

Set in "Higher

Cut"

position/reduca

speed.

2.

Throttle

in "CHOKE"

position.

2.

Adjust

throttle

control.

3.

Buildup of grass,

leaves

and trash under deck.

3.

Clean

underside

of mower

housing.

4.

Dirty

air

filter.

4.

Clean/replace

air

filter.

5.

Low oil

level/dirty

oil.

5.

Check

oil levellchange

oil.

6.

Faulty

spark

plug.

6.

Clean and re-gap

or change spark

plug.

7.

Dirty

fuel filter.

7.

Replace

fuel

filter.

8.

Stale

or

dirty

fuel.

8.

Drain fuel tank and refill with fresh gasoline.

9.

Water

in fuel.

9.

Drain fuel tank and carburetor,

refill

tank with

fresh

gasoline

and

replace

fuel filter.

10.

Spark

plug wire

loose.

10.

Connect

and

tighten

spark

plug wire.

11.

Dirty

engine

air

screen/fins.

11.

Clean

engine

air

screen/fins.

12.

Dirty/clogged

muffler.

12.

Clean/replaca

muffler.

13.

Loose

or

damaged

wiring.

13.

Check

all wiring.

14.

Carburetor

out

of adjustment.

14.

See Engine

Manual.

15.

Engine valves out of adjustment.

15.

Contact

an

authodzed

service

center/department.

Excessive vibration 1. Worn, bent or loose blade.

2.Bent blade mandrel.

3.Loose/damaged part(s).

1.Replace blade. Tighten blade bolt.

2.Replace blade mandrel.

3.Tighten loose part(s). Replace damaged parts.

31