Honda NHSO aeroBO 1983, Shop Manual

Page: 42 / 184

HONDA
NHSO
Turn the air screw in or out to
obtain
the highest
engine speed.
R
e
adju
st
the
idle speed to
1 ,800
±
100
rpm, using
the
throttle
stop screw.
LIMITER CAP I N STALLATION
If
the air screw has been removed,
a
new limiter cap
m
u
st
be
installed after air screw
a
d
j
ust
m
e
nt
is
com·
pleted.
After
adjustment,
cement
the
limiter cap over the
air screw, using
LOCTITE
®
#601
or equivalent.
The limiter cap should be
placed
against
its
stop,
preventing further adjustment t
hat
would enrich the
fuel mixture (limiter cap position permits counter­
clockwise rotation and prevents clockwise rotation).
NOTE:
An air screw limiter cap
must
be installed.
It
prevents misadjustment that could cause poor
performance and increase emissions.
HIGH ALTITUDE ADJUSTMENT
For
sustained high altitude operation (above
2,000
m/6,500 ftl
i
n
st
a
ll a
#82
main jet and
r
ead
ju
st idle
speed.
Remove the carburetor from the engine and remove
the float chamber.
Replace the standard
main jet with
the high
altitude
#82
main
jet.
Assemble and install
the carburetor.
Adjust idle speed
to
1 ,800
±
100
rpm, using the
throttle stop screw.
CAUTION:
Sustained operation at altitudes lower than
1,500
m
( 5,000
ft} with the high altitude
main jet installed may cause engine overheat-
ing and damage. For sustained operation
below
1,500
m
(5,000
ft}, reinstall the stand-
ard main jet and readjust idle speed.
Standard
High
altitude
2,000
m
type
1,500
m
(6,500 f
t
)
max.
(5,000 ft)
min.
Main
jet
#88 #82
Idle speed
1 ,800
±
100
rpm
Air screw
initial
Factory pre-set
opening
Attach
the vehicle
Emission Control Information
Update
Label
as shown.
NOTE:
Do not attach the label to any part that can
be easily removed from the vehicle.
Date of Issue: May,
1983
© HONDA MOTOR CO., L TO.
45
LIMITER CAP
VEHICLE
EMISSION CONTROL
INFORMATION UPDATE LABEL
FUEL SYSTEM
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