Troubleshooting points – Poulan 166120 User Manual
Page 27
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TROUBLESHOOTING POINTS
PROBLEM
CAUSE
RRECTION
Will not
start
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
“To
Adjust Carburetor” in Service Adjustments
section.
10.
Engine valves out of
adjustment.
10,
Contact an authorized service center/department.
Hard to start
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
To
Adjust Carburetor” in Service
Adjustments
section.
8.
Engine valves
out
of adjustment.
8.
Contact an
authorized
service center/department.
Engine will not turn over
1.
Clutch/brake pedal
not depressed.
1.
Depress clutch/brake pedal.
2,
Attachment clutch is engaged.
2,
Disengage attachment
clutch.
3.
Weak or dead battery.
3,
Recharge or replace battery.
4.
Blown fuse.
4.
Replace
fuse.
5,
Corroded
battery
terminals.
5.
Clean battery
terminals.
6.
Loose or damaged wiring.
6.
Check
all
wiring.
7.
Faulty ignition switch.
7,
Check/replace ignition switch.
8.
Faulty solenoid or starter.
8.
Check/replace solenoid or starter.
9.
Faulty operator presence switch(es).
9.
Contact an
authorized service center/department.
Engine clicks but will not
1,
Weak or dead battery.
1.
Recharge or
replace
battery.
start
2.
Corroded
battery terminals.
2.
Clean battery terminals.
3.
Loose or damaged wiring.
3.
Check
all
wiring.
4.
Faulty solenoid or starter.
4.
Check/replace solenoid or starter.
Loss of power
1.
Cutting too much grass/too fast.
1.
Set in “Higher Cut” position/reduce speed.
2.
Throttle in “CHOKE” position.
2,
Adjust
throttle
control.
3.
Build-up of grass,
leaves and
trash under mower.
3.
Clean underside of mower housing.
4.
Dirty air filter.
4.
Clean/replace
air
filter.
5.
Low oil level/dirty oil.
5.
Check
oil
level/change oil.
6.
Faulty spark plug.
6.
Clean
and
regap 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/tins.
11. Clean engine air screen/tins.
12.
Dirty/clogged muffler.
12.
Clean/replace muffler.
13.
Loose or
damaged wiring.
13.
Check all wiring.
14.
Carburetor out of adjustment.
14. See “To Adjust Carburetor” in Service Adjustments
section.
15.
Engine valves out of adjustment.
15. Contact an authorized service
center/department.
Excessive vibration
1.
Worn, bent or loose blade.
1.
Replace blade. Tighten
blade
bolt.
2.
Bent
blade
mandrel.
2.
Replace blade mandrel.
3.
Loose/damaged part(s).
3.
Tighten
loose
part(s). Replace damaged parts.
27