Originally Posted By 71birdJ68
I just bought a like new Ferret model 84 and the instructions are extremely vague, anybody know how this thing works?


Well, looking at a picture looks like use the mode button to set it up for 4 stroke. Use UP and DOWN to adjust the number of degrees from zero. I.E. if you want to set timing at 38*, plug 38 into the back of the light and the timing marks should line up a TDC when the timing is at 38. Set to zero to use as a regular light to set with the marks.


If the results don't match the theory, change the theory.