Craftsman YT 4000 Lawn Mower User Manual


 
TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM CORRECTION
Will not start
Hard to start
Engine will not
turn over
Engine clicks but
will not start
Loss of power
1
2
4
5
6
7
CAUSE
Out of fuel.
Engine not "CHOKED" properly.
Engine flooded.
Bad spark plug.
Dirty air filter.
Dirty fuel filter.
Water in fuel.
8 Loose or damaged wiring.
9 Carburetor out of adjustment.
10 Engine valves out of adjustment.
1 Fill fuel tank.
2 See "TO START ENGINE" in
Operation section.
3 Wait several minutes before
attempting to start.
4 Replace spark plug.
!5 Clean/replace air filter.
6 Replace fuel filter.
7 Empty fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel filter.
8 Check all wiring.
9 See "To Adjust Carburetor" in
Service and Adjustments section.
10 Contact a Sears or other qualified
service center.
1 Dirty air filter.
2 Bad spark plug.
3 Weak or dead battery.
4 Dirty fuel filter.
!5 Stale or dirty fuel.
6 Loose or damaged wiring.
7 Carburetor out of adjustment.
1 Clean/replace air filter.
2 Replace spark plug.
3 Recharge or replace battery.
4 Replace fuel filter.
!5 Empty fuel tank and refill tank
with fresh, clean gasoline.
6 Check all wiring.
7 See "To Adjust Carburetor" in
Service and Adjustments section.
8 Engine valves out of adjustment.
1 Clutch/brake pedal not depressed.
2 Attachment clutch is engaged.
3 Weak or dead battery.
4 Blown fuse.
!5 Corroded battery terminals.
6 Loose or damaged wiring.
7 Faulty ignition switch.
8 Faulty solenoid or starter.
9 Faulty operator presence
switch(es).
1 Weak or dead battery.
2 Corroded battery terminals.
3 Loose or damaged wiring.
4 Faulty solenoid or starter.
1 Cutting too much grass/too fast.
2 Throttle in "CHOKE" position.
3 Build-up of grass, leaves and
8 Contact a Sears or other qualified
service center.
1 Depress clutch/brake pedal.
2 Disengage attachment clutch.
3 Recharge or replace battery.
4 Replace fuse.
!5 Clean battery terminals.
6 Check all wiring.
7 Check/replace ignition switch.
8 Check/replace solenoid or starter.
9 Contact a Sears or other qualified
service center.
1 Recharge or replace battery.
2 Clean battery terminals.
3 Check all wiring.
4 Check/replace solenoid or starter.
1 Raise cutting height/reducespeed.
2 Adjust throttle control.
3 Clean underside of mower
trash under mower.
4 Dirty air filter.
!5 Low oil level/dirty oil.
6 Faulty spark plug.
7 Dirty fuel filter.
8 Stale or dirty fuel.
housing.
4 Clean/replace air filter.
5 Check oil level/change oil.
6 Clean &regap or changesparkplug.
7 Replace fuel filter.
8 Empty fuel tank and refill tank
with fresh, clean gasoline.
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