Charging System; Troubleshooting Chart - Yamaha EF3000iSE Service Manual

CHARGING SYSTEM

TROUBLESHOOTING CHART

Inspection steps:
1. Fuse
2. Battery voltage
3. Charging voltage
NOTE:
• Remove the following part(s) before troubleshooting.
1) Battery bracket
2) Fuel tank
• Use the following special tool(s) for troubleshooting.
Pocket tester:
YU-03112-C, 90890-03112
1. Fuse
• Remove the fuse.
• Connect the pocket tester (Ω × 1) to the
fuse.
• Check the fuse for continuity.
2. Battery voltage
• Connect the pocket tester (DC 20 V) to
the battery terminals.
• Measure battery voltage.
Tester positive lead → positive terminal
Tester negative lead →
Battery voltage:
12.8 V or more
*
CHARGING SYSTEM
THE BATTERY IS NOT CHARGED
CONTINUITY
negative terminal
GOOD
4-17
4. Charging coil resistance
5. Rectifier
6. Wire harness (charging system circuit)
Inductive self-powered tachome-
ter:
YU-8036-B
Engine tachometer:
90890-03113
(90793-80009, 90793-80032)
NO CONTINUITY
Replace the fuse.
OUT OF SPECIFICATION
• Clean the battery terminals.
• Recharge or replace the battery.
– +
ELEC