Yamaha YZ 2018 Series, Owner'S Service Manual

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ELECTRICAL SPECIFICATIONS
2-9
EASB29B056
ELECTRICAL SPECIFICATIONS
Voltage
System voltage 12 V
Ignition system
Ignition system TCI
Advancer type Digital
Ignition timing (B.T.D.C.) 10.0 °/2000 r/min
Engine control unit
Model B292
Ignition coil
Primary coil resistance 2.16–2.64

Secondary coil resistance 8.64–12.96 k

Spark plug cap
Resistance 7.50–12.50 k

Lean angle sensor output voltage
Operating angle 45 °
Output voltage up to operating angle 0.4–1.4 V
Output voltage over operating angle 3.7–4.4 V
Charging system
Charging system AC magneto
Standard output 14.0 V, 160 W at 5000 r/min
Stator coil resistance 0.528–0.792

Rectifier/regulator
Regulator type Three-phase
Regulated voltage (DC) 14.1–14.9 V
Rectifier capacity (DC) 23.0 A
Battery
Model YTZ7S(F)
Voltage, capacity 12 V, 6.0 Ah (10 HR)
Indicator light
Fuel level warning light 12 V, 1.7 W
Engine trouble warning light 12 V, 1.7 W
Starter motor
Power output 0.35 kW
Armature coil resistance 0.0189–0.0231

Brush overall length 7.0 mm (0.28 in)
Limit 3.50 mm (0.14 in)
Brush spring force 3.92–5.88 N (400–600 gf, 14.11–21.17 oz)
Commutator diameter 17.6 mm (0.69 in)
Limit 16.6 mm (0.65 in)
Mica undercut (depth) 1.50 mm (0.06 in)
Fuel injection sensor
Crankshaft position sensor resistance 228–342

Intake air temperature sensor resistance 5400–6600

at 0 °C (5400–6600

at 32 °F)
Intake air temperature sensor resistance 290–389

at 80 °C (290–389

at 176 °F)
Coolant temperature sensor resistance 2512–2777

at 20 °C (2512–2777

at 68 °F)
Coolant temperature sensor resistance 210–220

at 100 °C (210–220

at 212 °F)