Honda V65 Magna-VF1100C 1983 Shop Manual page 77

HIGH ALTITUDE ADJUSTMENT (USA only)
When the vehicle is to be operated continuously
above 2,000 m (6,500 feet) the carburetor must be
readjusted as follows to improve driveability and
decrease exhaust emissions.
Warm up the engine to operating temperature. Stop
and go driving for 10 minutes is sufficient.
Remove each pilot screw plug (page 4-8) .
Turn each pilot screw clockwise 1 turn.
Adjust the idle speed to 1,000 ± 100 rpm with the
throttle stop screw.
Drive new pilot screw plugs into the pilot screw
bores (page 4-17).
NOTE:
This adjustment must be made at high alti-
tude to ensure proper high altitude operation.
Attach a Vehicle Emission Control Information
Update label onto the frame as shown. Refer to
Service Bulletin #SL 132 for information on obtain-
ing the label.
NOTE:
Do not attach the label to any part that can
be easily removed from the vehicle.
Operation at an altitude lower than 1,500 m
(5,000 feet) with the carburetor adjusted for
high altitudes may cause the engine to idle
roughly and stall.
When the vehicle
is
to be operated conti·
nously below 1,500 m (5,000 feet), turn each
pilot screw counterclockwise I turn to its
original position after removing each pilot
screw plug and adjust the idle speed to 1,000
± 100 rpm. Drive new pilot screw plugs into
the pilot screw bores (page 4·17). Be sure to
do these adjustments at low altitude.
FUEL SYSTEM
VEHICLE EMISSION CONTROL
IN.FORMATION UPDATE LABEL
4-19