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deflection is approximately 20 - 30 mm
(0.8 - 1.2 in). If the deflection exceeds
20 - 30 mm (0.8 - 1.2 in) adjust the
chain tension.
2.
Tension adjustment
a.
Loosen the rear brake adjusting nut
(XS650-2F only).
Remove the cotter pin of the rear wheel
b.
axle nut with pliers.
Loosen the rear wheel axle nut.
C.
Loosen the lock nuts on each side. To
d.
tighten chain,turn chain puller adjusters
clockwise. To loosen chain, turn adjusters
counterclockwise and push wheel for-
ward. Turn each adjuster exactly the
same amount to maintain correct axle
alignment. (There are marks on each side
of rear arm and on each chain puller; use
them to check for proper alignment.)
1. Locknut
4. Roar whal ale nut
2. Adjuster
5. Cotter
alignment
3. Marks for
e. After adjusting, be sure to tighten the
lock nuts and the rear wheel axle nut.
f. Inset-t the cotter pin into the rear wheel
axle nut and bend the end of the cotter
pin as shown in the illustration (if the
nut notch and the cotter pin hole do not
match, tighten the nut slightly to match).
NOTE:
Excessive chain tension will overload the en-
gine and other vital parts, keep the tension
within the specified limits. Also, replace the
rear axle cotter pin with a new one.
pin
-141-
g. In the final step, adjust the play in the
brake pedal (XS650-2F only).
(PAGE 14 - 15)
2-5. ELECTRICAL
C. Ignition timing
1. Point gap must be set before setting
timing.
2. Ignition timing is checked with a
light by observing the position of the
stationary marks stamped on the stator
and the pointer on the generator rotor.
1. Top dead canter
3. Advanced mark
2. 15' ETDC at 1,200 rlmn
Connect timing light to right (left)
3.
cylinder spark plug lead wire. Ignition
timing of right cylinder must be set first.
4.
Start the engine and keep the engine
speed as specified on the label. Use a
tachometer for checking.
5.
The rotor pointer should line up the "F"
stamped timing mark on the stator at a
specified engine speed. If it does not
align, loosen the two breaker backing
plate screws (breaker assembly holding
screws for left cylinder) and move the
complete backing plate (breaker assem-
bly for left cylinder) until the point
marks align.
timing
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