Sym DD Servicemanual - Scootergrisen

Transmission Oil
Leak
Check if the transmission is leak.
Check
Caution
Park the scooter on flat ground with its main
stand.
Remove the oil level check bolt, and check if the
oil level is placed on the hole of check bolt.
Replacement
Remove the oil level check bolt.
Remove the oil draining bolt, and then drain oil
out.
Install the oil draining bolt.
Tighten torque: 1.3 kgf-m
Caution
Check if oil seal and washer is in good
condition.
Replacement Quantity: 0.09 L (90 cc)
Recommended oil: King Bramax HYPOID
GEAR OIL #140
Spark Plug
Recommended plug: NGK BR8HSA
Remove the luggage box.
Remove the spark plug cap.
Clean any dirt on the spark plug seat.
Remove the spark plug.
Visually inspect the spark plug electrodes for
wear.
The center electrode should have square
edges and side electrode should have a
constant thickness. Replace the spark plug if
there is apparent wear or if the insulator is
cracked and/or chipped. If the spark plug
deposits can be removed by sandpaper, the
spark plug can be reused.
Measure the spark plug gap with feeler
gauge.
Spark plug gap: 0.6-0.7mm (0.024-0.028in)
Adjust the gap by careful bending the side
electrode.
Install the spark plug by screwing it with
hands after installed the spark plug washer
so that can prevent the plug from out of
thread. Then, tighten the spark plug with a
spark plug wrench.
Install the spark plug cap.
This chapter Contents
2. SERVICE MAINTENANCE INFORMATION
Draining bolt
0.6~0.7mm
Side electrode
Center electrode
Oil level check bolt
Oil level check bolt hole
2-11