Bob-I think you misunderstood my reply,I was speaking of coil which to my knowledge has no electronic parts in it except possibly an internal condenser as looking at diag on pg 8.4 in manual of trigger module the condenser is located down stream of kill sw & I know of no ext mounted condenser on this type of ign system & suspect condenser is internal in coil,this might also explain why manual only tells you how to check secondary of coil,but nothing about checking primary.
It's possible there are either old testers/newer testers running around out there to check trigger module operation without removing trigger from eng in addition many of newer kohler eng have smart spark system which have a pickup installed in coil,when this style coil is checked I don't know if different make/mod testers have provisions for checking pickup also when testing coil & possibly be backward looking to check trigger modules,it's been over 30 yrs since I've taken a coil to a shop to have checked so I don't really know what's out there now in the way of testers.
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