1983 Ski-Doo Shop Manual, Page 230Get this manual

SECTION 04 ELECTRICAL SUB-SECTION 06 (TESTING PROCEDURE)
Control unit diode test

NOTE: This test is applicable only to 4-5P ignition systems
a) Set the selector to CONTRO UNIT DIODE position Then, four or five LEOs il lightIf four or five LEOs do not light, check the power source and that the selector and switches are positioned cor rectlyb) Depress the START switch and read LED level ind icatorReading should be: for 4-5P only from to 8

ANALYSIS OF TEST RESULT

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives