Yamaha 40V Service Manual page 198

– +
ELEC
IGNITION SYSTEM
1. Measure:
CDI unit output (test #1)
Beyond specification → Replace igni-
tion coil.
Below
charge coil output.
Repeat checking two times.
CDI output:
125 V @ cranking
140 V @ 1,500 r/min
110 V @ 3,500 r/min
Measuring steps:
Disconnect the ignition coil couple.
Connect the 3 pins test harness.
3 pins test harness:
YB-06443, 90890-06757
Connect the tester to the measurement
terminal.
Set the tester dial to specification.
Range:
—
. ......
V
Crank or start the engine.
2. Measure:
Charge coil output (test #2)
Below specification → Replace charge
coil.
Beyond
pulser coil output.
Charge coil output:
(Br – L) 145 V @ cranking
Measuring steps:
Connect the tester to the charge coil.
Set the tester dial to specification.
Range:
—
. ......
V
Crank or start the engine.
8-11
→
specification
specification →
160 V @ 1,500 r/min
130 V @ 3,500 r/min
E
Measure
Measure