1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 62Get this manual
52 bMeasure resistance between the two primary terminals using an accurate ohmmeterRefer to Figures 13 and 14cCompare the measured resistance with the specifications listed in Table 3dDisconnect the meter leads4Check ignition coil secondary resistance as follows: aRemove the spark plug cap from the end of each high-tension cablebIf necessary, switch the ohmmeter to the 1000 scalecOn coils with two spark plug wires, measure the resistance between the ends of the two high-tension (spark plug) cablesRefer to Figure 13dOn the single coil of three cylinder models, measure the resistance between the end of the high-tension (spark plug) cable and the primary leadRefer to Figure 14eCompare the measured resistance with the specifications listed in Table 3fDisconnect the meter leads5Check ignition coil insulation as follows: aIf necessary, switch the ohmmeter to the scalebOn coils with two spark plug cables, measure resistance between the primary lead terminals and each high-tension (spark plug) cableThe meter should read infinitycMeasure resistance between the primary lead terminals and the ignition coil core (mounting)The meter should read infinity6If resistance tests of the coil are not as specified in Steps 3-5, the coil is probably faultyHave dealership recheck the coil to verify that the unit is faulty before buying replacementSee Chawter NineNOTE Normal resistance in both the primary and secondary (high-tension) coil windings is not guarantee that the unit is working properlyOnly an operational spark test can indicate whether or not a