SERVICE INFORMATION
8
HCAS-2200
2-3 Adjusting carburettor
1. Start engine and warm it up alternating engine
speed between WOT and idle every 5 seconds for
1 minute.
2. Adjust idle mixture needle and obtain maximum
idle speed with 2.5 mm blade small screw driver.
3. Set idle speed to 3,500 r/min by turning idle adjust
screw.
4. Turn idle mixture needle anticlockwise to reduce
idle speed 500 to 750 r/min in the range of 2,750 to
3,000 r/min.
NOTE : Engine speed must be allowed to stabilize
a minimum of 20 seconds after each adjustment of
L mixture needle to assure accurate tachometer
readings.
5. Adjust H mixture needle and obtain maximum
WOT engine speed.
6. Turn H mixture needle anticlockwise to reduce
WOT engine speed 100 r/min.
7. Restart engine again and make sure engine runs
in the range of 2,700 to 3,200 r/min at idling and the
range of 9,500 to 11,500 r/min at WOT. Also make it
sure cutting device would not move at engine idle
speed and suitable acceleration.
8. After adjusting carburettor, insert and secure new
plug(s) (F) P005-001270 deep in the needle holes
per the Emission regulation using limiter plug tool (E).
NOTE : Initial carburettor setting (idle adjust screw,
idle and H mixture needles) shown on page 3 and 7
is to start the engine after restoration or carburettor
change. Idle adjust screw, idle and H needles turn
for designated engine revolution through procedures
indicated here may vary. As long as idle and WOT
engine speed is set in given range, variance would
be ignorable.
(F)
(E)
(F)
