Stp Sensor Adjustment; Fuel Injector Removal; Fuel Injector Inspection - Suzuki VZR1800 2007 Service Manual

6-22 FUEL SYSTEM AND THROTTLE BODY

STP SENSOR ADJUSTMENT

If the STP sensor adjustment is necessary, measure the sensor
out put voltage and adjust the STP sensor position as follows:
• Remove the air cleaner chamber. (!6-13)
• Disconnect the STVA coupler. (!6-14)
• Insert the needle pointed probes to the STP sensor lead wire
coupler.
• Turn the ignition switch ON.
• Close the secondary throttle valve by finger, and measure the
STP sensor out put voltage.
% STP sensor out put voltage
ST valve is fully closed: Approx. 0.6 V
$ 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
+ Tester knob indication: Voltage (,)
• If the STP sensor voltage is out of specification, loosen the
STP sensor mounting screw and adjust the STP sensor volt-
age to specification.
• Tighten the STP sensor mounting screw.
$ 09930-11950: Torx wrench
( STP sensor mounting screw:

FUEL INJECTOR REMOVAL

• Remove the fuel tank. (!6-3)
• Remove the air cleaner chamber. (!6-13)
• With battery negative cable disconnected, disconnect the
injector couplers.
• Remove the fuel delivery pipes. (!6-15)
• Remove the fuel injectors. (!6-16)

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.
The fuel injector can be checked without removing it from the
throttle body.
Refer to page 5-68 for details.
(+ Y/W – - B/Br)
3.5 N·m (0.35 kgf-m, 2.5 lb-ft)
V
B/Br B/Br
Y/W Y/W