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OPERATION
TROUBLESHOOTING
TROUBLESHOOTING
AFTER RUNNING OUT OF FUEL
When starting the engine again after running out of fuel, fill with fuel, then bleed the air from the fuel system before
starting the engine.
Always watch the fuel level and be careful not to run out of fuel.
If the engine has stopped because of lack of fuel, it is necessary to use the priming pump to bleed the air completely
from the fuel circuit.
PROCEDURE FOR BLEEDING AIR
CAUTION
This engine consists of higher precision parts than on the conventional fuel injection pump and nozzle, so if dirt gets in, it will
cause problems. If there is any dirt stuck to the fuel line, use fuel to wash it off completely.
Be careful when opening the air bleed plug at the fuel filter head and the air bleeder of the supply pump. The system is still
under pressure and fuel may spurt out.
1. Fill the fuel tank with fuel.
2.
Loosen air bleed plug (A), (B) at the fuel filter head (1).
3.
Loosen the knob of priming pump (2), then pump the knob until
no more bubbles come out of air bleed plug (A).
4.
Wrap sealing tape around air bleed plug (A) before tightening
it.
5. Operate the priming pump again and check that no more
bubbles come out with the fuel from air bleed plug (B).
6.
Tighten air bleed plug (B).
Tightening torque: 4.9 to 6.9 Nm (0.5 to 0.7 kgm , 3.6 to 5.1 lbft)
7.
Loosen air bleeder (3) of the supply pump.
8.
Pump priming pump (2) approx. 90 - 100 times until no more
bubbles come out with the fuel from air bleeder (3), then tighten
air bleeder (3).
Tightening torque: 4.9 to 6.9 Nm (0.5 to 0.7 kgm , 3.6 to 5.1 lbft)
9. Continue pumping (approx. 50 times) until the priming pump
(2) becomes stiff and the overflow valve release sound
becomes continuous.
10. Push in the knob of priming pump (2) and tighten it.
11. Turn the key in the starting switch to the START position and start the engine.
When doing this, do not crank the starting motor continuously for more than 20 seconds. If the engine does not
start, wait for at least 2 minutes, then try again. Perform this operation a maximum of 4 times.
12. If the engine does not start, repeat the procedure from Step 2.
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