Yamaha EH63 Service Manual page 24

BASIC SERVICE INFORMATION
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5.
Check:
• Continuity
(with the digital circuit tester)
Digital circuit tester (CD732):
90890-03243
Model 88 Multimeter with tachometer:
YU-A1927
TIP
• If there is no continuity, clean the terminals.
• When checking the wire harness, perform steps (1) to
(4).
• Make sure to check the connector and coupler of the TCI
unit/CDI unit when replacing the TCI unit/CDI unit.
• As a quick remedy, use a contact revitalizer available at
most part stores.
NOTICE
For waterproof couplers, never insert the tester leads
directly into the coupler. When performing any checks
using a waterproof coupler, use the specified test har-
ness or a suitable commercially available test harness.
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