Ignition System - Yamaha EF4500iSE Theory & Diagnostics Manual

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2) Secondary coil resistance
9 Connect the pocket tester (Ω × 1k) to the
secondary terminal.
Tester (+) lead → High-tension cord 1
Tester (–) lead → Ground terminal 2
Secondary coil resistance:
Refer to Service Data Section for Specifications
11.5 kΩ ± 20% at 20 °C (68 °F)
MEETS
SPECIFICATION
5. Air gap
9 Measure the thickness between the magnet
rotor and ignition coil.
Air gap:
Refer to Service Data Section for Specifications
0.5 ± 0.1 mm (0.02 ± 0.004 in)
MEETS
SPECIFICATION
6. Engine switch
9 Disconnect the engine switch coupler in the
control box.
9 Connect the pocket tester (Ω × 1k) to the
engine switch terminal.
Tester (+) lead → Black/white terminal 1
Tester (–) lead → Black terminal 2
Switch "ON" → Continuity
Switch "STOP" → No continuity
CONTINUITY
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IGNITION SYSTEM

OUT OF
SPECIFICATION
OUT OF
SPECIFICATION
NO CONTINUITY
2-21
5-6
Inverter Generator Diagnostics
2
1
Replace the ignition coil.
Adjust the air gap.
Replace the engine switch,
ELEC
1
B/W
B
2