1997 Ski-Doo Factory Shop Manual Volume One, Page 221Get this manual
Section 05 ELECTRICAL Sub-Section 07 (TESTING PROCEDURE)
RESISTANCE MEASUREMENTS
As an alternate method, magneto system components can be checked with digital ohmmeterNOTEAll resistance measurements must be performed with parts at room temperature (approx20C (68F))Temperature greatly affects resistance measurements'
Disconnect connector at ignition coil and magneto junctionMeasure resistance between each terminalRefer to the following table for values and wire colorsNOTEAn ignition coil with good resistance measurement can still be faultyVoltage leak can occur at high voltage level which is not detectable with an ohmmeter