McCulloch MOWCART 66 - Manual (Page 22)

22
PROBLEM CAUSE CORRECTION
Will not start 1 Out of fuel. 1 Fill fuel tank.
2 Bad spark plug. 2 Replace spark plug.
3 Dirty air filter. 3 Clean/replace air filter.
4 Water in fuel. 4 Empty fuel tank and carburetor, refill tank with fresh
gasoline and replace fuel filter.
5 Loose or damaged wiring. 5 Check all wiring.
6 Engine valves out of
adjustment.
6 Contact a qualified service center.
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 Stale or dirty fuel. 4 Empty fuel tank and refill tank with fresh, clean
gasoline.
5 Loose or damaged wiring. 5 Check all wiring.
6 Engine valves out of
adjustment.
6 Contact a qualified service center.
Engine will not
turn over
1 Clutch/brake pedal not
depressed.
1 Depress clutch/brake pedal.
2 Deck clutch is engaged. 2 Disengage deck 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 a qualified service center.
Engine clicks but
will not start
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 Check/replace solenoid or starter.
Loss of power
1 Cutting too much grass/too
fast.
1 Raise cutting height/reduce speed.
2 Build-up of grass, leaves and
trash under mower.
2 Clean underside of mower housing.
3 Dirty air filter. 3 Clean/replace air filter.
4 Low oil level/dirty oil. 4 Check oil level/change oil.
5 Faulty spark plug. 5 Clean & regap or change spark plug.
6 Stale or dirty fuel. 6 Empty fuel tank and refill tank with fresh, clean
gasoline.
7 Water in fuel. 7 Empty fuel tank and carburetor, refill tank with fresh
gasoline.
8 Spark plug wire loose. 8 Connect & tighten spark plug wire.
9 Dirty engine air screen/fins. 9 Clean engine air screen/fins.
10 Dirty/clogged muffler. 10 Clean/replace muffler.
11 Loose or damaged wiring. 11 Check all wiring.
12 Engine valves out of
adjustment.
12 Contact a qualified service center.
Excessive
vibration
1 Worn, bent or loose blade. 1 Replace blade. Tighten blade bolt.
2 Bent blade mandrel. 2 Contact a qualified service center.
3 Loose/damaged part(s). 3 Tighten loose part(s).
Replace damaged parts.
TROUBLESHOOTING POINTS