Honda ST50 Shop Manual page 84

82
CT70 '79 ADDENDUM
I 0. THROTTLE OPERATION
Check that the throttle grip free play is 2- 6mm
(1/8- 1/4 in) measu red at the throttle gri p flange.
Inspect the thro11le cable for kinks, chafing or
improper routing.
2. Check for smooth rotation and closing tension of the
throttle grip in alls1eeringpositions.
3. Adjust or repl ace the throttle cable
if necessary.
Adjustment is made with either the upper or lower
cable adjusters.
NOTE
Install the rubber cap after adjusting the throttle
cable.
11. CARBURETOR IDLE SPEED
Support the motorcycle upright. Warm up the engine
and determine
if
the engine idle speed is I,300 ± JOO
rpmwiththetransmissionin neutral.
NOTE
The engine mus1 be warm, for idle adjustment. Ten
minutes of stop and go driving should be sufficient.
., Adjust the engine idle speed with the throttle stop
CAUTION
The pilot screw is factory pre-set. Do not adjust the
pilot screw unl ess th e cavbu retoi oVe rhauled or a high
altitudemain"etis installed see. a e95
12. CARBURETOR CHOKE
I. Loosen the intake pipe clamp screw. Remove the ai r
cleaner assembly mounting upper bolt and lower nut.
Remove the air cleaner assembly. Check the choke
lever for smooth operation and that the choke plate
opens and closes fully. Inspect the choke plate for
damage. lnstalltheaircleanerassemb!y.
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