Honda TRX400EX FOURTRAX 1999, Руководство по обслуживанию

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HIGH ALTITUDE ADJUSTMENT
Between
3,000
-
8,000
ft
Below
Main jet
Pilot screw
1 turns in from
The carburetor must be adjusted for high altitude rid-
ing (between 3,000 -
8,000
- 2,500
STANDARD SETTING: Below 5,000 ft
11,500
HIGH ALTITUDE SETTING: Between 3,000
-
8,000
(1.000
-
2,500
The high altitude carburetor adjustment is performed
as follows:
Remove the carburetor (page 5-3) and the float cham-
ber cap.
Replace the standard main jet with the high altitude
HIGH ALTITUDE MAIN J E T #142
Check that the O-ring on the chamber cap is
in
good
condition and replace
it
with a new one if necessary.
Install the chamber cap and the carburetor.
Turn-in the pilot screw the specified number of turns
from the initial setting.
TOOL
Pilot screw wrench 07908-4220201
HIGH ALTITUDE PILOT SCREW OPENING:
1 turn
in
from initial opening
Start the engine and adjust the idle speed at high alti-
tude to ensure proper high altitude operation.
the engine must be running t o d o some work,
make sure the area is well-ventilated. Never run the
engine in an enclosed area. The exhaust contains
poisonous carbon monoxide gas that may cause loss
of
consciousness and lead t o death. Run the engine
in an open area or with an exhaust evacuation system
in an enclosed area.
CAUTION:
Sustained operation below 5,000 f t with the
high altitude settings may cause engine overheating
and engine damage. Install the standard main j e t
and screw out the pilot screw the specified number
of turns, when riding below 5,000 ft 11,500
STANDARD MAIN JET
148
Pilot
screw change for
low
altitude: 1
t u r n out