Checking And Charging The Battery - Yamaha YZ450FX 2019 Owner's Service Manual

Timing light
90890-03141
Timing light
YU-03141
Digital tachometer
90890-06760
Digital tachometer
YU-39951-B
1
3. Adjust:
• Engine idling speed
Refer to "ADJUSTING THE ENGINE IDLING
SPEED" on page 3-15.
4. Check:
• Ignition timing
Check whether the alignment mark "a" on the
left crankcase cover is within the firing range
"b" on the rotor.
Incorrect firing range  Check rotor and
crankshaft position sensor.
b b
5. Install:
• Timing mark accessing screw
Timing mark accessing screw
6 N·m (0.6 kgf·m, 4.4 lb·ft)
EAM30256

CHECKING AND CHARGING THE BATTERY

Refer to "CHECKING AND CHARGING THE
BATTERY" on page 8-59.
3 3
2 2
a a
3-37
ELECTRICAL SYSTEM