Secondary Air Supply System; Transmission Oil - KYMCO XCITING 500 Service Manual

3
. INSPECTION/ADJUSTMENT
SECONDARY AIR SUPPLY
SYSTEM
This model is equipped with a built-in

secondary air supply system.

The secondary air supply system introduces
filtered air into exhaust gases in the exhaust
port. The secondary air is drawn into the
exhaust port whenever there is negative
pressure pulse in the exhaust system. This
charged secondary air promotes burning of
the unburned exhaust gases and changes a
considerable amount of hydrocarbons and
carbon monoxide into relatively harmless
carbon dioxide and water.
Check the AICV (air injection control valve)
hoses between the AICV control solenoid
valve and cylinder head cover for
deterioration, damage or loose connections.
Make sure the hoses are not cracked.
If the hoses show any signs of heat damage,
inspect the AICV check valve in the AICV
reed valve cover damage.

TRANSMISSION OIL

OIL CHANGE
Place the scooter in its center stand.
Remove the transmission oil drain bolt (1)
and the transmission oil filler bolt (2), slowly
turn the rear wheel and drain the oil.
After draining the oil completely, install the
oil drain bolt with a new sealing washer and
tighten it.
Torque: 24 N•m (2.4 kgf•m, 18 lbf•ft)
3-17
Air Supply Hose AICV Reed Valve
AICV Control Solenoid Valve
XCITING 500