General Lubrication; Spark Plug Inspection; Cooling System Inspection - Sym MMBCU Owner's Manual

General Lubrication

•
Lubricate the following parts with either engine oil or general grease in accordance with the
Periodic Maintenance Schedule or whenever the vehicle has been operated under wet or
rainy conditions. Clean off rusty spots and wipe off any oil or grease.
Side stand pivot
Main stand pivot
Front / rear brake lever pivot
Throttle cable

Spark Plug Inspection

•
Have the spark plug checked by an authorized SYM dealer. If the electrodes are
contaminated with heavy deposits or the insulator is damaged, replace with a new one.
Measure the spark plug gap Ⓐ with a wire type feeler gauge. The gap should be within 0.8 ~
0.9 mm. If adjustment is needed, bend the side electrode Ⓑ carefully.
WARNING:

Beware of the engine heat when inspecting the spark plug.

Cooling System Inspection

《Coolant level inspection》

Position the scooter on level ground and in an upright position.

Check the coolant level to see if it is between upper and lower
level from the coolant inspection window.

Add the coolant to the upper limit if it reaches the lower level.
《Coolant leakage inspection》

Check if there is leakage at radiator and hose.
Coolant Refilling
If the coolant is slightly insufficient, refill the coolant to the coolant
reservoir.

Position the scooter on level ground and in an upright position.

Remove the coolant reservoir cover.

Open the coolant reservoir cap and add the coolant to the upper limit.

If the coolant level drops too excessively, inspection is needed.

Contact an authorized SYM dealer to have the coolant changed.
Recommended: "SYM Long Life Coolant"
Solution: 50%
Coolant capacity: Radiator:
Reservoir:
500
cc.
170
cc.
Ⓐ
24
Ⓑ