Ignition System; Troubleshooting Chart - Yamaha EF2800i Service Manual

IGNITION SYSTEM

TROUBLESHOOTING CHART

Inspection steps:
1. Spark plug
2. Ignition spark gap
3. Spark plug cap
4. Ignition coil resistance
5. Charge coil resistance
NOTE:
• Remove the following part(s) before troubleshooting.
1) Spark plug
• Use the following special tool(s) for troubleshooting.
Pocket tester:
YU-03112, 90890-03112
1. Spark plug
• Check the spark plug condition.
Refer to "SPARK PLUG" in CHAPTER 2.
2. Ignition spark gap
• Disconnect the spark plug cap 1 from the
spark plug.
• Connect the dynamic spark tester 2 or
ignition checker 3 as shown.
Spark plug cap 1 → Dynamic spark
tester or ignition checker
Dynamic tester lead or ignition checker
lead → Spark plug 4
È For USA
É Except for USA
NO SPARK OR WEAK SPARK
GOOD
4-4
IGNITION SYSTEM
6. Pulser coil resistance
7. Engine switch
8. Oil level switch
9. Wire harness
Dynamic spark tester:
YM-34487
Ignition checker:
90890-06754
NO GOOD
Repair or replace the spark plug.
È
É
– +
ELEC
SVU4055
SVU4060