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,.
21
2
Wear of the gears
When the gaars has been used over a
long
period,
the
gear
teeth and tho
dog w,11
wear and w,11 also tend to make
contact
on
the
side.
producing
noise and cousinq
the dog slip out
Ut1der such cond111on
the
gears
should be replaced 1n
sets
tor
sat,sfactory
performance
,
3
Mea
sur,ng clearance
between the gear and shaft
Measure
the d iameter of
the
gear
shaft
bore with a cyl,ndor gauge or rns1d1..
micrometer and
measure
the shalt diameter
with
a
m1crometor.
From the Lwo
valuu
compute
the
clearance.
{Reference)
Item
Srnnd111d
V.iluo
0
6699-0
6/Q!J
_G_e_a_r_s
_h_
a
_
h _b
_o_,_
a
_ _ _
_._(17
o
16- 17 04
3
inrn_L
Mainshelt o'1em1Jter
Oi!686-0
66tlcl
(16
983-1 b
Al)
l
111111}
-cnrn
,s-o
ooeo
{1
6
966- IO 984
mrn)
Countershaft diameter
4
Checlc1ng the operation of the respec11ve
gears
Sh1ft the gears
into
the neutral pos111on and check
10
make sure that
all
of tMe
gears
rotate smoothly or slide smoothly
.
D.
Reassembly
Perform
the
reassernoly
111
the reverse
order
or
disassembly
Exercise care on the
following
points
Assemble the respective gears. washers
and
circlms
properly
tn
the accordance
With Fig 45
2
Replace all c1rcllps wnh new
items
3 4 5 '~
1
©
Tram1m111B1on mo111shalt
~
Th1u11 wuahur
Cl)
Ma,nshalt
second gear
I 7
mm
1r,11ne
w11h111
~
17
mm circllp
I
Maln&huh ton gout
C2)
17
mm
ctrclip
!J:
nansmfrs.,on
countt11•ha1t
ca,
Counte1shef1 low oear
17 mm
11.1t1nu
war.hdr
i,J)
t
7
mm
c•rcllp
g:
CounH,r1h111t
'IOConn QOllt
@ Counte1shal1 top
gea,
1.i'
Go.,, collar
@
13 6
mm 1hm:11
wn~he1
•
F,g.
45
•
10 GEAR
SHIFT
MECHANISM
A
.
Description
The gear soindle arm
wh
ich ts
connected to
the
gear shill spindle rotates tho gear sh1r1
drum and th1s causes the
gear
shift
rork
10 move left and right 111 tho
drum
groovo.
The gear sh1h
fork
1s conuoled by
the
groove
in
the
drum and this tn
turn
causes
the
gears to slide and change gears.
B.
D isassembly
l
Refer
to the section on
disassembly
of the crankshaft assembly on page
18.
By
removing
the
right crankcase. the
gear
sh1fl
drum
and the
fork
assembly can btt
removed
together
w11h
the
transm
1ss1on
gear as
a complete untl
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