Troy-Bilt 77T Manuel D’Utilisation

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.