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SPEC
MAINTENANCE SPECIFICATIONS
ELECTRICAL
Item
Standard
Limit
Voltage:
12 V
----
Ignition system:
Ignition timing (B.T.D.C.)
12°/ 1,500 r/min
----
Advancer type
Digital type
----
C.D.I.:
Magneto model/manufacturer
F4T46471/MITSUBISHI
----
Pickup coil resistance/color
459 ~ 561
Ω
at 20 °C (68 °F)/
White/Red – White/Green
----
Rotor ratation direction sensing coil resis-
tance/color
0.104 ~ 0.127
Ω
at 20 °C (68 °F)/
Red – White/Blue
----
C.D.I. unit model/manufacturer
F8T36472/MITSUBISHI
----
Ignition coil:
Model/manufacturer
2JN/YAMAHA
----
Minimum spark gap
6 mm (0.24 in)
----
Primary winding resistance
0.18 ~ 0.28
Ω
at 20 °C (68 °F)
----
Secondary winding resistance
6.32 ~ 9.48 k
Ω
at 20 °C (68 °F)
----
Spark plug cap:
Type
Resin type
----
Resistance
10 k
Ω
----
Charging system:
Type
A.C. magneto generator
----
Model/manufacturer
F4T496/MITSUBISHI
----
Nominal output
14 V 21 A at 5,000 r/min
----
Charging coil resistance/color
0.32 ~ 0.43
Ω
at 20 °C (68 °F)/
White – White
----
Rectifier/regulator:
Regulator type
Semi conductor-shortcircuit
----
Model/manufacturer
SH650D-11/SHINDENGEN
----
No load regulated voltage (DC)
14.1 ~ 14.9 V
----
Capacity
18 A
----
Withstand voltage
200 V
----
Electric starter system:
Type
Constantmesh type
----
Starter motor
Model/manufacturer
SM-13/MITSUBA
----
I.D. number
SM-13
----
Output
0.8 kW
----
Armature coil resistance
0.025 ~ 0.035
Ω
at 20 °C (68 °F)
----
Brush overall length
12.5 mm (0.49 in)
5 mm
(0.20 in)
Spring force
7.65 ~ 10.01 N (27.54 ~ 36.03 oz) ----
Commutator diameter
28 mm (1.10 in)
27 mm
(1.06 in)
Mica undercut
0.7 mm (0.03 in)
----
Summary of Contents for YFM660FS
Page 1: ...LIT 11616 17 14 5KM 28197 E2 YFM660FS SUPPLEMENTARY SERVICE MANUAL ...
Page 17: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...
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Page 72: ...YFM660FP SERVICEMANUAL LIT 11616 15 01 5KM 28197 E0 ...
Page 117: ...2 11 SPEC MAINTENANCE SPECIFICATIONS Item Standard Cylinder head tightening sequence ...
Page 417: ...9 3 ELEC CHECKING THE SWITCH ...
Page 478: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...