CONTROL SYSTEM
(4)Turn the throttle stop screw 4 in
c
direction
engine idling speed is obtained.
c
Direction
d
Direction
EXHAUST GAS CONTROL
PROCEDURES
1. Install:
Exhaust probe set
Exhaust gas probe:
NA/90890-03161
Surge tank set:
NA/90890-03162
Installing steps:
(1)Remove the Apron.
(2)Remove the 8 mm bolt 1 and gasket.
(3)Install the exhaust gas probe 2.
(4)Connect the hose 3 between the
probe and the surge tank 4.
2. Preparation for measuring:
Engine temperature
Warming up steps:
(1)Run the engine in neutral at the
specified speed for 15 minutes
Engine speed:
2,000 ± 200 r/min
(2)With shift in position rev the engine 3
b
times
.
(3)Keep in neutral again, the specified
speed for 1 minutes
Engine speed during the official
test: 1,000 ± 100 r/min
3-11
d
or
until the specified
Engine idling speed
increases.
Engine idling speed
decreases.
a
c
.
.