Led inspection
Check that the leds “a” (fi, fuel, engine rpm, oil pressure/engine coolant, immobilizer (e-02, 19, 24, 51) and meter panel illumination) immediately light up when the ignition switch is turned on.
Check that the other leds “b” (neutral, high-beam and turn signal indicator lights) light up/go off by operating each switch.
If abnormal condition is found, replace the combination meter assembly with a new one after checking its wire harness/coupler. Refer to “combination meter removal and installation” .

Stepping motor inspection and adjustment
If abnormal condition is found, replace the combination meter assembly with a new one after checking its wire harness/coupler.

Note
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Pointers will return to the proper position right after the completion of the operation. In the case of the pointers not returning to the proper position after doing above, replace the combination meter unit.
Refer to “combination meter removal and installation” .
Combination meter disassembly and
assembly
Engine coolant temperature indicator light inspectionPiston and piston ring inspection
Refer to “piston ring removal and installation” .
Piston diameter
Measure the piston diameter using the micrometer at 15
mm (0.6 In) “a” from the skirt end. If the piston diameter
is less than the service limit, replace the piston.
Special tool
(a): 09900–20203 (micrometer (50 –
75 mm))
Pis ...
Oil jet removal and installation
Piston cooling oil jet
Removal
Remove the engine assembly. Refer to “engine assembly removal” in
section 1d .
Remove the crankshaft assembly. Refer to “engine
bottom side disassembly” in section 1d (page 1d-
49).
Remove the piston cooling oil jets (1) from the upper
cra ...
Injection timing description
Injection time (injection volume)
The factors to determine the injection time include the basic fuel injection
time, which is calculated on the basis of the
intake air pressure, engine speed and throttle opening angle, and various
compensations. These compensations are
determined according to ...