![]() Put your inductive light on that wire and see if they both indicate the same on the timing tab. Remove the #1 plug wire and use the cheepie timing light as your plug wire. The best check I have found on if your timing light is giving you good info or not is the ultra cheepie (non inductive) lights that plug between the sparkplug and the spark plug cable. The bad part can be that you don't know 100% for sure what your really have, an accurate flash of the strobe, or a delayed flash, or no flash because of confusing multiple signals. ![]() (does that make sense?) Anyways, that's why some work, some don't. Others may only process the first signal, and skip any that is incoming while it's processing the first. A lesser timing light may not be able to process the signal and flash the strobe before the next signal comes in, so it figures 'too late' and just process the 'next' signal. Other lights not acquainted with the multiple strike concept may not be able to process the rapid incoming signals and flash the strobe at the 'first strike' of the coil. A MSD timing light suposedly has the circutry to filter out the multiple strikes and give accurate flashes at the first firing of the coil (which is what we want). It's kind of like going from 3000rpm to 1000rpm between cylinders firing. Even tho the mulit-strikes happen in milli-seconds, it happens fast enough to confuse the processor in the timing light. What I have heard is the multiple sparks (below 3000rpm) is what screws with the inductive timing lights.
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