26
9
Trouble
Shooting
For repairs beyond
the minor adjust-
ments listed here,
contact an authorized
service dealer.
Cause
Problem
Remedy
Engine fails to start
1. PTO engaged.
2. Spark plug wire(s) disconnected.
3. Fuel tank empty or stale fuel.
4. Choke not activated.
5. Faulty spark plug.
6. Blocked fuel line.
7. Engine flooded.
8. Parking brake not engaged.
9. Throttle control lever not in correct
starting position.
1. Place PTO knob (or lever) in
disengaged (OFF) position.
2. Connect wire(s) to spark plug(s).
3. Fill tank with clean, fresh gasoline.
4. Pull out the CHOKE control (if so
equipped) or place the throttle
control in CHOKE position.
5. Clean, adjust gap, or replace.
6. Clean fuel line or replace fuel filter,
if so equipped.
7. Crank engine with throttle in FAST
position.
8. Engage parking brake.
9. Place throttle lever to FAST
position.
Engine runs erratic
1. Push CHOKE control (if so
equipped) in, or move the throttle
control out of the CHOKE position.
2. Connect and tighten spark
plug wire(s).
3. Clean fuel line; fill tank with clean,
fresh (less than 30 days old)
gasoline. Replace fuel filter, if so
equipped.
4. Clear vent or replace if damaged.
5. Drain fuel tank. Refill with
fresh fuel.
6. Replace air cleaner cartridge/ele-
ment or clean pre-cleaner, if so
equipped.
1. Unit running with CHOKE applied.
2. Spark plug wire(s) loose.
3. Blocked fuel line or stale fuel.
4. Vent in gas cap plugged.
5. Water or dirt in fuel system.
6. Dirty air cleaner.
Summary of Contents for 77T Series
Page 23: ...23 6 Maintaining Your Lawn Tractor Figure 21...
Page 30: ...30 Models 77T...
Page 36: ...36 Models 760 779...
Page 38: ...38 Models 760 779...
Page 42: ...42 Models 77T 20 13 21 14 10 18 12 11 22 19 23 3 9 4 17 15 8 6 7 16 2 5 1...
