Yamaha 2002 YFA1, Supplementary Service Manual

Page: 15 / 29

– 7 –
SPEC
MAINTENANCE SPECIFICATIONS
Rectifier/regulator:
Model/manufacturer EHU–01TR31/MATSUSHITA
Regulator type Semi conductor short circuit type
No load regulated voltage (DC) 14.0 ~ 15.0 V
No load regulated voltage (AC) 13.0 ~ 14.0 V
Rectifier capacity (DC) 8.0 A
Rectifier capacity (AC) 8.0 A
Withstand voltage 200 V
Electric starting system:
Type Constant mesh
Starter motor
Model/manufacturer 3FA1/YAMAHA
Output 0.4 kW
Armature coil resistance 0.019 ~ 0.023
Ω
at 20 °C (68 °F)
Overall length (brush) 10.0 mm (0.39 in)
<Limit> <3.5 mm (0.14 in>
Brush spring pressure 552 ~ 828 g
Commutator diameter 22.0 mm (0.87 in)
<Wear limit> <21.0 mm (0.83 in)>
Mica undercut 1.5 mm (0.06 in)
Starter relay
Model/manufacturer MS5D–611/JIDECO
Amperage rating 100 A
Coil resistance 3.87 ~ 4.73
Ω
at 20 °C (68 °F)
Starting circuit cut-off relay
Model/manufacturer ACA1211–9/MATSUSHITA
Coil resistance 72 ~ 88
Ω
at 20 °C (68 °F)
Diode No
Model YFA1 (P) 2002
16
(V)
12
(V)
8
(V)
4
(V)
1
(A)
2
(A)
3
(A)
4
(A)
0 2 4 6 8 10
V
L
Engine speed (
×
1000 r/min)
Ch
ar
gin
g
cu
rr
en
t
(A)
L
igh
tin
g
vo
lt
age
(
V
)
Ich (Day)
Ich (Night)