Fast Idle; Fuel Injector Removal; Fuel Injector Inspection; Fuel Injector Installation - Suzuki TU250X Service Manual

FAST IDLE

The fast idle system is automatic type.
On the secondary throttle valve shaft 1, the fast idle cam 2 is
installed. When this fast idle cam 2 is operated, the throttle
valve is opened to control the fast idle speed.
With the secondary throttle valve 1 turned, the fast idle cam 2
pushes the throttle lever 3, causing the throttle valve to open
slightly and increase the engine speed to the fast idle.
When the engine has warmed up, depending on the engine tem-
perature, ambient temperature and lapsed time, the fast idle is
cancelled allowing the engine to resume idle speed.

FUEL INJECTOR REMOVAL

• Remove the throttle body assembly. (5-11)
• Remove the fuel delivery pipe along with the fuel injector.
(5-12)
• Remove the fuel injector from the fuel delivery pipe.

FUEL INJECTOR INSPECTION

Check fuel injector filter for evidence of dirt and contamination. If
present, clean and check for presence of dirt in the fuel lines and
fuel tank.
NOTE:
The fuel injector can be checked without removing it from the
throttle body. (4-60, -61)

FUEL INJECTOR INSTALLATION

• Install the fuel injector onto the throttle body assembly.
(5-16)
• Install the throttle body assembly. (5-17)
Opened
FUEL SYSTEM AND THROTTLE BODY 5-19
Closed