Honda CB160 Shop Manual page 123

6. 1 MAINTENANCE
(2) There are two adiustment screws. These should
be turned in or out
l /
4 to 1 /2 of a turn. When
the highest rpm is reached, return the screw by
l /
8 of a turn to where the best exhaust sound is
produced.
(3) Engine speed and exhaust intensity are adjusted
by turning the limit screw and idling screw until
the idling speed is from 1 000 to
l
200 r.p.m.
h. Throttle adjustment
Open the throttle slightly and adjust so that
both left and right throttle valves operate toge-
ther. To do this, remove the air cleaner line
and place a mirror in front of the opening. If
the valve opening of the right and left valves is
not the same, adjust the throttle wire in the
carburetor cap until they are.
(Refer to Fig.
6. 21)
i.
Adjusting full open
Open the throttle wide. If the throttle valves
are not full open, turn the throttle wire adjuster
at the bottom of the throttle wire control.
(Refer to Fig. 6. 22)
j.
After adjustment is completed, check with a
test run. If acceleration is defective, readjust
as outlined in section 3. 13.
7. Air Cleaner
If the air cleaner is dirty, the vehicle will not
ope.ate correctly.
It
should be cleaned periodically.
a. Tools required for cleaning the air cleaner.
(Refer to Fig. 6. 23)
b. Remove the air cleaner cover. Dismount the
air cleaner from the vehicle.
c.
Clean with a brush or with compressed air.
(Refer to Fig. 6. 24)
(NOTE)
The cleaner element is paper. If the element
is wet or torn, it should be replaced.
Fig. 6. 21 Inspecting the throttle valve openings with
a mirror
Fig. 6. 22 Cable adjuster
Fig. 6. 23 Tools required for cleaning the air cleaner
Fig. 6. 24 Cleaning the air cleoner
119