ADJUSTMENT AND OPERATION
13-4
1.3 Bleeding fuel system
:$51,1*
Completely wipe off any spilled fuel from the air vent
plug with a cloth, and be sure to tighten the air vent
plug after air bleeding. Failure to do so could cause a
fire.
1.3.1 Bleeding fuel filter
(in-line fuel injection pump)
(1) Loosen the air vent plugs of the fuel filters. (approx. 1.5
turns)
(2) Unlock the priming pump cap by turning it
counterclockwise, then move the cap up and down
repeatedly.
(3) When fuel flowing from the vent holes no longer
contains air bubbles, tighten the air vent plugs.
Bleeding fuel filter
(in-line fuel injection pump)
1.3.2 Bleeding fuel injection pump
(in-line fuel injection pump)
(1) Loosen the air vent plugs for the injection pumps.
(approx. 1.5 turns)
(2) Move the cap up and down repeatedly.
(3) When fuel flowing from the vent holes no longer
contains air bubbles, tighten the air vent plugs. Before
tightening the last air vent plug, lock the priming pump
cap by turning it clockwise while pushing it down.
(4) Follow the same procedure for the fuel injection pumps
on both right and left sides.
Note: (a) If all the vent plugs are tightened before the
priming pump cap is locked, fuel pressure acts on
the feed pump, making it impossible to return the
cap to the original position.
(b) Wipe off fuel spilled from the vent holes
thoroughly with a cloth.
Bleeding fuel injection pump
(in-line fuel injection pump)
Air vent plug
Filter for in-line pump
Priming button
Fuel feed pump
Air vent plug
Priming button
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