Yamaha EF3000iSE Service Manual page 111

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5. Main switch
• Disconnect the main switch coupler.
• Connect the pocket tester (Ω × 1) to the
main switch.
Tester positive probe → red 1
Tester negative probe → brown 2
• Turn the main switch to "START" "
and check the main switch for continuity.
6. Wire harness (electric starting system)
• Check the terminal of the connector for
contamination or rust, and the connector
for proper connection.
ELECTRIC STARTING SYSTEM
C0NTINUITY
"
CONTINUITY
4-13
Br R
OFF
ON
START
B
B/W
NO CONTINUITY
Replace the main switch.
DISCONNECTED
Correct or replace the connector.
– +
ELEC
B B/W
2
Br
1
R
SWL4080