Yamaha 30 HMHS [88/446] Electrical

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Yamaha 25 BMHS [88/446] Electrical
MAINTENANCE SPECIFICATIONS
SPEC
2-6
E
ELECTRICAL
Item Unit
Model
Worldwide
25BMH 30HMH
IGNITION SYSTEM
Ignition timing
(Full retard) Degree ATDC 2 ± 2
(Full advanced) Degree BTDC 22 ± 2 BTDC 25 ± 2
Spark plug gap mm (in) 0.9 - 1.0 (0.035 - 0.039)
Ignition spark gap mm (in) 8.0 (0.31)
(Minimum)
Spark plug cap resistance
(with resister type) k 4 - 6
Ignition coil resistance
(Primary) 0.18 - 0.24
(Secondary) k 2.70 - 3.70
Charge coil resistance
(Br - L)
342 - 418
Charge coil output peak
voltage (Br - L)
@ cranking 1
*1
V146
@ cranking 2
*1
V146
@ 1,500 r/min V 150
@ 3,500 r/min V 150
Pulser coil resistance
(W/R - B , W/B - B)
311 - 381
Pulser coil output peak
voltage (W/R - B , W/B - B)
@ cranking 1
*1
V 6.8
@ cranking 2
*1
V 6.7
@ 1,500 r/min V 16.0
@ 3,500 r/min V 26.0
CDI unit resistance Refer to the "CDI UNIT" on page 8-10
CDI unit output peak voltage
(B/O - B , B/W - B)
@ cranking 1
*1
V 5.5
@ cranking 2
*1
V 130.0
@ 1,500 r/min V 135.0
@ 3,500 r/min V 135.0
*1
Cranking 1: Open circuit.
Cranking 2: Related parts are connected.

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