Yamaha EK40G, Service Manual

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6H95G11 2-6
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Maintenance specification
Item Unit
Model
EK40GMH EK40JMH EK40JW
Secondary coil
(spark plug wire–spark plug wire)
k
Ω
6.8–10.2
at 20°C (68°F)
CDI unit output peak voltage
(O–B)
at Cranking (loaded) V 160
at 1,500 r/min (loaded) V 185
at 3,500 r/min (loaded) V 170
Pulser coil output peak voltage
(W/R–B, W/B–B)
at Cranking (unloaded) V 10.0
at Cranking (loaded) V 10.0
at 1,500 r/min (loaded) V 30.0
at 3,500 r/min (loaded) V 66.0
Pulser coil resistance (W/R–B)
Ω
16.2–19.8
Pulser coil resistance (W/B–B)
Ω
16.2–19.8
Charge coil output peak
voltage (Positive side: Br–
Negative side: L)
at Cranking (unloaded)
V 150
at Cranking (loaded) V 140
at 1,500 r/min (loaded) V 190
at 3,500 r/min (loaded) V 180
Charge coil resistance (Br–L)
Ω
243–297
Starter motor
Type
Brushes
— — Bendix
Length limit mm (in) — — 9.0 (0.35)
Armature
Commutator undercut limit mm (in) — — 0.2 (0.01)
Charging system
Fuse A – — 20
Lighting coil output peak
voltage (G–G)
at Cranking (unloaded) V 6.0
at 1,500 r/min (unloaded) V 17.0
at 3,500 r/min (unloaded) V 38.0
Lighting coil resistance (G–G)
Ω
0.32–0.39
Rectifier output peak voltage
(R–B)
at 1,500 r/min (unloaded) V 13
at 3,500 r/min (unloaded) V 13
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