then readjust the electrode clearance and measure it with a
gap gauge to ensure the clearance is between 0.5 ~ 0.7mm.
The spark plug should be replaced every 5,000 miles of use.
Spark Plug Type: NGK CR8E.
5. Fuel Injector and Fuel Circuit
Fuel starts in the fuel tank and is pumped by the fuel pump
①, into the fuel filter ② and then into the fuel injector ③,
before it is injected in the cylinder for combustion.
Caution:
The standard spark plug used in this scooter is
carefully selected, it is also applicable to a wide range or
working conditions, if replacing please replace with a plug
of the same type and quality. An improper spark plug can
cause serious damage to the engine.
Caution:
Use caution when installing the spark plug not to
cross-thread it which will damage the cylinder head. Install
the spark plug by hand then tighten using a wrench, DO
NOT over tighten the spark plug as this can also damage
the cylinder head. Use caution when the spark plug is re
-
moved not to allow impurities into the engine through the
spark plug hole.
Please use the diagram below when reconnecting the fuel injec
-
tion system hoses. This picture shows the connections between
the fuel injection system and the fuel pump assembly in the fuel
tank.
•
Idle Speed Adjustment
Start the engine and allow it to warm up adequately. After the
engine has warmed up, ensure the throttle is closed, then adjust
the idle screw ①, the engine should maintain an engine RPM of
between 1,400-1,600 RPM. The idle adjustment screw is on the
right side of the throttle body between the valve body and airbox
connection.
