Transmission Oil Inspection And Change; Inspection And Adjustment Of Brake Free Play - Sym JET 50 series Owner's Manual

TRANSMISSION OIL INSPECTION AND CHANGE

INSPECTION:
Ÿ
Use the main stand to support the scooter on a level ground, after the engine stops, wait for 3~5
minutes. Remove the transmission oil infusion bolt, put a measuring glass under the drain bolt, and
remove the drain bolt. Let the oil flows into measuring glass and check for decreased or not. (at
disassembly: 120 c.c. / at change: 100~110 c.c.).
OIL REPLACEMENT:
Ÿ
Stop the engine and use the main stand to support your scooter on a level ground. Remove the
infusion bolt and drain bolt, drain out the oil.
Ÿ
Install the drain bolt and tighten it. Fill new transmission oil (100~110 c.c.), and install the infusion
bolt and tighten it. (make sure that bolts are tightened and check that there's no leakage.)
※ Recommend Oil: Genuine SYM HYPOID GEAR OIL (SAE 85W-140).
Use SAE85-90 when outside temperature is below 0℃.

INSPECTION AND ADJUSTMENT OF BRAKE FREE PLAY

INSPECTION: (Brake lever free play must be checked with the engine shut off.)
Ÿ
Brake lever free play for front and rear wheels
When checking the hand-braking lever for front
and rear wheels, its free play (the stroke of
hand-braking lever from no braking to initial
braking) should be 10~20mm.
It is abnormal if the feel is spongy when holding
the hand-braking lever forcefully.
Adjustment:
Ÿ
The indentation of brake adjustment nut must
be aligned with the pin. (see right figure)
CAUTION:
Ÿ
When free play is between 10~20 mm, check
brake indicators of front and rear wheels. If
the arrow on the brake arm aligned with the
"△" marked on the brake disk, that means
the brake lining has been excessively worn,
and must be replaced immediately.
Ÿ
Turn the adjustment nut on brake arm of front and rear wheels to adjust the free play of hand-brake
lever.
Ÿ
Hold the hand-brake levers after adjusting with both hands until there is effective brake feeling.
Ÿ
Measure the free play with a rule.
10~20 mm
Adjustment nut
10.Inspection and maintenance before riding
Pin
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