Electrical - Yamaha EK25BMH Service Manual

SPEC

ELECTRICAL

Item
IGNITION SYSTEM
Ignition timing
(Full retard)
(Full advanced)
Spark plug gap
Ignition spark gap
(Minimum)
Ignition coil resistance
(Primary)
(Secondary)
Charge coil resistance
(Br - L)
Charge coil output peak
voltage (Br - L)
*1
@ cranking 1
*1
@ cranking 2
@ 1,500 r/min
@ 3,500 r/min
Pulser coil resistance
(W/R - B , W/B - B)
Pulser coil output peak
voltage (W/R - B , W/B - B)
*1
@ cranking 1
*1
@ cranking 2
@ 1,500 r/min
@ 3,500 r/min
CDI unit resistance
CDI unit output peak voltage
(B/O - B , B/W - B)
*1
@ cranking 1
*1
@ cranking 2
@ 1,500 r/min
@ 3,500 r/min
*1
Cranking 1: Open circuit.
Cranking 2: Related parts are connected.
MAINTENANCE SPECIFICATIONS
Unit
Worldwide
Degree
Degree
mm (in)
mm (in)
Ω
kΩ
Ω
V
V
V
V
Ω
V
V
V
V
Ω
V
V
V
V
ATDC 2 ± 2
BTDC 22 ± 2
0.9 - 1.0 (0.035 - 0.039)
Refer to the "CDI UNIT" on page 8-10
2-6
Model
EK25BMH
8.0 (0.31)
0.18 - 0.24
2.70 - 3.70
342 - 418
146
146
150
150
311 - 381
6.8
6.7
16.0
26.0
5.5
130.0
135.0
135.0
E