Yamaha EF2800i - Inverter Generator, Service Manual

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4-5
– +
ELEC
IGNITION SYSTEM
OUT OF
SPECIFICATION
OR NO SPARK
• Turn the crankshaft and measure the igni-
tion spark gap
a
.
Minimum spark gap:
6 mm (0.24 in)
MEETS SPECIFICATION
The ignition system is good.
MEETS
SPECIFICATION
3. Spark plug cap
•
Remove the spark plug cap.
• Connect the pocket tester (
Ω
× 1k) to the
spark plug.
Tester (+) lead
→
Spark plug side
1
Tester (–) lead
→
High-tension cord side
2
Spark plug cap resistance:
4.0 ~ 6.0 k
Ω
at 20 °C (68 °F)
SVU4070
NOTE:
• Do not pull out the plug cap from the high-
tension cord.
• Remove
→
Turn the plug cap counterclock-
wise.
• Install
→
Turn the plug cap clockwise.
• Inspect the high-tension cord for cracks or
deterioration, when install the pug cap.
• Cut 5 mm off the end of the high-tension
cord, and then connect it to the plug cap.
OUT OF SPECIFICATION
Replace the spark plug cap.
MEETS
SPECIFICATION
4. Ignition coil resistance
•
Remove the ignition coil.
1) Primary coil resistance
•
Connect the pocket tester (
Ω
× 1k) to the
primary terminal.
Tester (+) lead
→
White/Blue terminal
1
Tester (–) lead
→
Black terminal
2
Primary coil resistance:
0.11
Ω
± 15% at 20 °C (68 °F)
*
OUT OF SPECIFICATION
Replace the ignition coil.
SVU4080
2
1