1972 Ski-Doo Shop Manual, Page 208Get this manual
3-04-02 ANALYZER TEST
ME RCo-O-TRONIC
Prior to testing the circuitry or any electrical component, it is first necessary to test the Operation and battery power of the analyzerTo do this, proceed as follows: 1Turn the small adjustment screw located on the front of the analyzer meter so that the needle pointer aligns with the "0" reading on scale No.1 of meter (fig3-4-1)
IMPORTANT: To test the armature plate com ponents, remove armature plate and ignition coil{s) from engine and proceed with the tests in the following sequence
TEST NO.1IGNITION COIL POWER TEST