BRP Johnson J25R4SUR - ELECTRIC STARTER SYSTEM

72
ELECTRICAL
BATTERY CHARGING SYSTEM
Rectifier and Regulator
Disconnect all lead wires of rectifier and regulator.
Measure the resistance between leads in the
combinations shown:
Unit: Approx. k
Ω
If measurement is out of specification, replace the
rectifier and regulator.
Fuse
Remove the fuse from fuse case.
Inspect the fuse and replace with a new 20-amp
fuse if needed.
Tester probe + (Red)
Tester probe - (Black)
Black White Yellow 1 Red Yellow 2 Yellow 3
Black 7 – 11 2 – 4 2 – 4 2 – 3 7 – 11
White ∞ ∞∞∞0
Yellow 1 160 – 240 2 – 4 400 – 600 400 – 600 2 – 4
Red
160 – 240 2 – 4 400 – 600 400 – 600 2 – 4
Yellow 2 ∞∞∞∞ ∞
Yellow 3 ∞ 0 ∞∞∞
004721
Red
Yellow 1
Yellow 3
Yellow 2
White
Black
1. Fuse case 005561
1. Fuse 004724
1