Cub Cadet 764 - Trouble Shooting

19
For repairs beyond
the minor adjust-
ments listed here,
contact an autho-
rized service dealer.
6
Trouble
Shooting
CauseProblem
Remedy
Engine fails to start
1. Choke not activated.
2. Spark plug wire disconnected.
3. Fuel tank empty or stale fuel.
4. Blocked fuel line.
5. Faulty spark plug.
6. Engine flooding.
7. Burnt fuse (Electric Start Only)
1. Place throttle/choke control in CHOKE
position.
2. Connect wire to spark plug.
3. Fill tank with clean, fresh gasoline.
4. Clean fuel line.
5. Clean, adjust gap, or replace.
6. Wait a few minutes to restart, but do not
prime.
7. Replace fuse. (See Maintenance Section.
Engine runs erratic 1. Move throttle/choke control out of CHOKE
position.
2. Connect sprak plug wire(s).
3. Clean fuel line; fill tank with clean, fresh
gasoline and replace fuel filter.
4. Clear vent.
5. Drain fuel tank and carburetor. Refill with
fresh fuel.
6. Refer to engine manual.
1. Engine running with CHOKE
activated.
2. Spark plug wire(s) loose.
3. Blocked fuel line or stale fuel.
4. Gas cap vent plugged.
5. Water or dirt in fuel system.
6. Dirty air cleaner.
Engine overheats
1. Fill crankcase with proper oil.
2. Refer to the engine manual packed with
your unit.
3. Remove blower housing and clean.
4. Refer to engine manual.
1. Engine oil level low.
2. Dirty air filter.
3. Air flow restricted.
4. Carburetor not adjusted properly.
Occasional skip
(hesitates) at high speed
1. Adjust gap to .030”. Refer to engine
manual.
2. Refer to engine manual.
1. Spark plug gap too close.
2. Carburetor idle mixture adjustment
improperly set.
Idles poorly
1. Reset gap to .030” or replace spark plug.
Refer to engine manual.
2. Refer to engine manual.
3. Refer to engine manual.
1. Spark plug fouled, faulty or gap too
wide.
2. Carburetor improperly adjusted.
3. Dirty air cleaner.
1. Cutting Blade loose or unbalanced.
2. Bent cutting blade.
1. Tighten blade and adapter. Balance blade
2. Replace blade.
Excessive vibration
1. Wheels not positioned correctly.
2. Dull blade.
Uneven cut
1. Place all four wheels in same height
position.
2. Sharpen or replace blade.
1. Wet grass.
2. Excessive high grass.
3. Dull blade.
1. Do not mow when grass is wet;
wait until later to cut.
2. Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting path.
3. Sharpen or replace blade.
Mower will not mulch
grass