Honda C72 Shop Manual page 55

Fig . 3- 11.
CD
Neutral switch assembly
®
Geor shift fork
®
o
/I
®
Gear shift drum
guide pin
roll er
®
Shift drum stopper guide complete
CD
®
®
®
/I complete
1/
spr ing
1/
setting plate
Gear shift spindle complete
@ "
arm complete
@ Shift
arm spring
@
1/
pin
@
Gear shift return spring
@
Shift return spring pin
®
Shift fork rod
@
Geor change pedol
@ Chonge pedol rubber
@)
Stopper arm setting bolt
@
Kick
starter stopper
bolt
@
Shift arm spring washer
@ Shift fork pin lock washer
@
12254.5V oil seal
@
6 X 24 Hex. bolt
@ 6X16
/I
@ 6X12
/I
@ 6X 12 plus screw
@
6 X 12 coller pin
~'B~~ides,
there is equipped a switch to indicate neu tral state, which put light on a in-
dicator lamp when the rotary switch combin ed on th e shift drum is \ in neutral state.
The shift mechanism to actuate the above mentioned counter shaft 2 gear and the
main shaft 3 gear is explained as follows. In Fig. 3-11 wh en the gear change pedal
1171 is pushed down, the gear shift spindle 1101 is turn ed , and conseque:ltly the gear
shift arm
1111
will tUrn the drum
151
being push ed by the protrusion on th e left end
of this gear shift drum.
As there are shift fork guide pin
131
and guide pin roller
141
which fitted on the gear
shift fork
121
in the groove on the cent er part of th e shift drum, rotation of drum
actuates gear shift fork to move along th e form of th e groove from side to side and
the shift gear is actuated. Here gear shift return spring 1141 is fitted to retu rn the
change pedal to original position and prepare next action and shift drum stopper
161 is guide 171 for it.
108
C. Final drive mechanism
The drive mechanism from crank h
to t e rear wheel is called final drive mechanism. The
main ports are as shown in Figure, primary reduction /intermediate reduct ion), clutch,
mission, final drive Ipropeller shaft, final reductionl wheel and tyre.
CD
Clutch
®
Mission shaft
®
Drive chain
o
Final driven sprocket
Fig . 3- 12.
109
®
Driv e sprocket
®
Primary chain
CD
Crank shaft