High Altitude Adjustment - Honda rebel 250 Service Manual

FUEL
SYSTEM
HIGH ALTITUDE
ADJUSTMENT
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 emis-
sions.
Warm
up the
engine
to
operating temperature. Stop
and
go
riding for
10
minutes
is
sufficient.
Turn
the
pilot
screw clockwise
1/2
turn.
Adjust
the
idle
speed
to
1,400
± 100
rpm
with the
throttle
stop screw.
HIGH ALTITUDE SETTING
1/2 turn
In
from
inftlel
setting
NOTE
•
This
adjustment must be
made
at
high
altitude to
ensure
proper high
altitude
operation.
Attach
a
Vehicle Emission Control Information
Update
Label
on the
left
side
of
the
air
cleaner housing
as
shown
In
the
label position
illustration.
NOTE
•
Do
not attach the
label
to
any part that
can be
oasily
removed
from
the
vehicle.
CAUTION
• Sustained operation at
an
altitude
lower than 5.000
feet
<1*00 mi
with the carburetor adjusted for high
altitude lettings
nun cause
engine
to idle
roughly and
stall in
traffic. It
may
also cause
engine
damage
due
to
overheating
When
the vehicle
is
to
be operated continuously
below
5,000
feet (1,500
m).
turn the
pilot
screw
to
the
Low
Altitude
Setting specified
below.
LOW
ALTITUDE
SETTING:
1/2 turn out
Adjust the
idle
speed 1,400
t 100
rpm
with the
throttle stop
screw.
Be
sure
to
make
these
adjustments
at
low
altitude.
Remove
the Vehicle
Emission
Control Information
Update
Label that is
attached
on
the
left
side of the
air
cleaner
hous-
ing.
VEHICLE EMISSION
CONTROL ^FORMATION UPDATE
•
HONDA MOTOR
CO, LTD
THB
VEHICLE
HAS BEEN ADJUSTED TO
AMOVE
EMISSION
CONTROL PERFORMANCE
WHEN OPERATED
AT
HUH
AL7TTUOE.
ALTTTUOC
PERFORMANCE ADJUSTMENT
WRUCTIONS
ARE
AVAILABLE AT
YOUR AUTHORIZED HONDA
DEALER.
5-13