
TROUBLESHOOTING POINTS
PROBLEM | CAUSE | 
  | CORRECTION | 
  | 
  | ||
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
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.  | Empty 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.  | Empty fuel tank and refill tank with fresh, clean 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.  | Brake pedal not depressed.  | 1.  | Depress 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.  | Raise cutting height/reduce speed.  | 
  | 
  | |
  | 
  | 2.  | Throttle in “CHOKE” position.  | 2.  | Adjust throttle control.  | 
  | 
  | 
  | 
  | 3.  | 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.  | Empty fuel tank and refill tank with fresh, clean gasoline.  | 
  | 
  | 
  | 
  | 9.  | Water in fuel.  | 9.  | Empty 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/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