High Altitude Adjustment - Honda C8R600F4 Service Manual

FUEL SYSTEM
HIGH ALTITUDE ADJUSTMENT
When the vehicle is to be operated continuously
above 2,000 m (6,500 feet), the carburetors must be
readjusted as described below to improve
driveability and decrease exhaust emissions.
Romovo the carburetor asoombly from tho intake
ports of the cylinder head (page 5-15).
Drain the carburetors and remove the float cham-
bers.
Change each main jet for a high altitude one.
MAIN JET
HIGH ALTITUDE MAIN JET FLOAT CHAMBER
5-34
49 state/Canada type: ' - - - - - - - - - - - - - - - - - - - - - '
No. 1 and 4 carburetors:
#
130
No. 2 and 3 carburetors:
#
132
California type:
#
125
Install the float chambers.
Install the carburetor assembly (page 5-30).
Install the fuel tank and support it with the eye-let
wrench (page 2-3).
Warm up the engine to operating temperature.
Stop and go driving for 10 minutes is sufficient.
Turn each pilot screw in to the specification given.
TOOL:
Pilot screw wrench 07KMA-MN90100 or
07KMA-MS60101
HIGH ALTITUDE SETTING: 1/2 turn in
Adjust the idle speed with the throttle stop screw.
IDLE SPEED;
49 state/Canada type: 1,300
±
100 rpm
California type: 1,400
±
100 rpm
Attach the Vehicle Emission Control Information
Update label on the rear fender under the seat as
shown.
NOTE:
Do not attach the label to any part that can be easily
removed from the vehicle.
C/\UTION:
Sustained operation at an altitude lower than
1,500 m (5,000 feet) with the carburetors adjusted
for high altitude may cause the engine to idle
roughly and the engine to stall in traffic. It may
also cause engine damage due to overheating.
EMISSION CONTROL INFORMATION
UPDATE LABEL