Swingarm
dis-
and reassembly
Swingarm:
The rearfork construction is based on the so called swing
arm principle.
The advantages of this construction are, constantly
equal chain tension during spring action and keeping
away all engine vibrations from the rider.
Dis-assembly
of the swingarm:
Remove the rear brake cable from the rear hub by
unhooking it from the fastening lip.
Then the following steps have to be performed after
having removed the engine:
— Remove the rear wheel;
— Release and remove the lower shock-absorber bolts;
— Release the locknut of the swingarm bolt;
— Release the swingarm bolt;
— Disassemble the wire plug (see pict. 24).
W
"N
«
r
m
/
Pict. 27
Reassembly of the swingarm:
Follow the reverse order of the operations described
above.
Mount shock-absorbers before tightening swing-
arm bolt and pre-tension them, center to center 290 mm
(11,23") (see pict. 27).
This to achieve optimum pre-load of the silent blocs.
Tighten swingarm bolt with 8
mkp
(58 ft lb) (see pict. 27)
and secure it with the counter nut.
Make absolutely sure that the swingarm bolt is tightened
properly.
If
tightened insufficiently the silentblocs (pict. 28 item S)
will start turning around this bolt, thus causing serious
wear and tear on the inner bushing.
For the sake of avoiding this it is necessary after the
first 500 miles to release the counter nut and tighten the
swingarm bolt, and then secure it again with the counter
nut!
Disassembly of the silentblocs:
The silentblocs cannot be pressed out before the
outerwall has been weakened by drilling holes between
inner- and outer-bushing with a 6 mm (15/64") drill (see
pict. 29) as the fitting of the silentblocs is very tight.
10.76
2
M
T
r
I
T
Pict. 28
*s\
r
V
S
•
Pict.
29
A high load is needed to press new blocs into the frame.
But if after the first 500 miles the bolt is retightened
properly as described above, replacement will not be
necessary.
Centerstand
The centerstand is attached to the rearfork by means of
special M 8 bolts (see pict. 28, item T).
22
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