Checking The Pulser Coil - Yamaha FT50C Service Manual

WARNING
When checking the peak voltage do not
touch any of the connections of the digital
tester leads.
NOTE:
• Use the peak voltage adaptor with the digi-
tal circuit tester.
• When measuring the peak voltage, set the
selector on the digital circuit tester to the
DC voltage mode.
Digital circuit tester: 90890-03174
Peak voltage adaptor: 90890-03172
Test harness (2 pins): 90890-06767
Charge coil output peak voltage:
Brown (Br) – Blue (L)
Unloaded
r/min
Cranking
DC V 144 137
Charge coil resistance (use as
reference):
Brown (Br) – Blue (L)
272–408 Ω at 20 °C (68 °F)
62Y5A11
Ignition system and Ignition control system
Loaded
1,500 3,500
169 129

Checking the pulser coil

1. Measure the pulser coil output peak volt-
age. Replace the pulser coil if below
specification.
WARNING
When checking the peak voltage do not
touch any of the connections of the digital
tester leads.
NOTE:
• Use the peak voltage adaptor with the digi-
tal circuit tester.
• When measuring the peak voltage, set the
selector on the digital circuit tester to the
DC voltage mode.
Digital circuit tester: 90890-03174
Peak voltage adaptor: 90890-03172
Test harness (2 pins): 90890-06767
Pulser coil output peak voltage:
White/red (W/R) – White/black
(W/B)
Unloaded
r/min
Cranking
DC V 6.3 3.5
1
2
3
4
5
6
7
8
9
Loaded
1,500 3,500
7.4 11.2
8-12