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Initially Posted by milo
No spark on both plug.
Measure the first and secondary windings on the coil with a Digital Multi Meter (DMM). The low ohms studying is perhaps a bit troublesome with an affordable DMM, however it may be finished.
What I measured again in 1992 on my 1990 R100 GS:
Resistance of major coil: 1.1 to 1.3 ohm.
Resistance of secondary coil: 8.50 Okay ohm.
If I bear in mind, additionally be aware that it makes use of the wasted spark system. Each plugs fireplace on the identical time. One on compression and one on exhaust.
Every ignition wire measured 4.86K ohm.
Additionally these coils generally tend to crack. I bear in mind doing a diagnostic on a BMW and positive sufficient, his coil was cracked.
Subsequent is the Ignition Module and the Corridor Sensor, however that may wait until you take a look at the coil.
Additionally, on my 1990 R100 GS after I purchased it new, I seen the very slightest hesitation…you actually needed to have an excellent really feel. Sooner or later after I took the Ignition Module and warmth sink out to resume the warmth sink compound, I seen that one of many leads within the connector block was pulled again and never snapped into the connector. Positive sufficient after trying up the colour code of the wiring, it was the wiring to the kill swap.
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