Checking The Thermoswitch; Starting System; Checking The Fuse (Wh, E, Et) - Yamaha E115A Service Manual

ELEC
Test harness 1: 90890-06871
Charge coil output peak voltage:
(low-speed)
Red (R) – Brown (Br)
Unloaded
r/min
Cranking
130
DC V
(100)
Charge coil output peak voltage:
(high-speed)
Black/red (B/R) – Blue (L)
Unloaded
r/min
Cranking
45
DC V
(30)
( ): Manual start
4. Disconnect the charge coil coupler.
5. Connect the digital circuit tester to the
charge coil coupler (charge coil side).
6. Measure the charge coil resistance.
Replace the stator assembly if out of
specification.
Charge coil resistance
(reference data):
Brown (Br) 1 – Red (R) 3
428–642 Ω at 20°C (68°F)
Blue (L) 2 – Black/red (B/R) 4
48–72 Ω at 20°C (68°F)
8-9
Electrical system
Loaded
1,500 3,500
140
160 160
(80)
Loaded
1,500 3,500
45
160 160
(30)
6S380145

Checking the thermoswitch

1. Place the thermoswitches in a container
of water and slowly heat the water.
2. Check the switches for continuity at the
specified temperatures. Replace the ther-
moswitches if out of specification.
a Temperature
b Time
c No continuity
d Continuity
Thermoswitch continuity
temperature:
Pink (P) – Black (B)
e: 84.0–90.0 °C (183–194°F)
f: 60.0–74.0 °C (140–165°F)

Starting system

Checking the fuse (WH, E, ET)

1. Check the fuse (20A) for continuity.
Replace the fuse if there is no continuity.
S6P28750
61U5H11