Checking The Rectifier Regulator - Yamaha FT50C Service Manual

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ELEC

Checking the Rectifier Regulator

1. Measure the Rectifier Regulator output
peak voltage. If below specification, mea-
sure the lighting coil output peak voltage.
Replace the Rectifier Regulator if the out-
put peak voltage of the lighting coil is
above 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 (4 pins): 90890-06771
Rectifier Regulator output peak
voltage:
Red (R) – Black (B)
r/min
1,500
DC V 18.9
8-23
Electrical systems
Unloaded
3,500
19.5
NOTE:
After starting the engine, disconnect the out-
put lead (red lead) of the Rectifier Regulator
when measuring the output peak voltage.
62Y5A11