For example, to obtain the 900 rpm slow idle
12. Loosen nut (E) on fast idle stop screw (F).
speed, turn the slow idle stop screw (B) out to get
approximately 865 rpm. Hold screw and tighten
Pull lever against fast idle stop screw. Turn screw
the nut. Then turn the supplementary idle screw
in to decrease engine speed; turn screw out to
(D) in to increase engine speed to 900 rpm. Hold
increase engine speed. Hold screw and tighten
screw and tighten nut.
NOTE: The fast idle stop screw serves as the stop
11. Pull injection pump lever rapidly to fast idle then
when the HP (high power) mode is actuated.
decelerate to slow idle. Slow idle must be to
13. Stop the engine. Connect the cable to lever.
NOTE: Increasing slow idle setting a small amount,
but no more than the maximum specifications,
14. Do Engine Control Motor and Sensor Adjustment
may help to reduce surging or hunting. If
and then the Engine Speed Learning Procedure.
surging or hunting continues, repair injection
(See procedures in this group.)