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.020
no points , electronic
i do mine at 15 thou and set timing at 12degrees BTDC
If your 1980 H D still has it's electronic ignition set the plug gap at .040 ... If some one has changed it to a point and condenser set up you need to set your plug gap at .028 and your points, if it has been converted , set at .018
Dist. Points gap is .016" (0.4mm)
Twins are .7-.8mm.
The Gap Band III was created in 1980.
The dwell for the points should be 30 degrees. The spark plug gap should be .040".
0.35 gap
points gap on a 76 volkswagen beetle
That year engine does not have POINTS.
ALL HARLEYS WITH POINTS HAVE THE SAME POINT SPECS:.018"POINT GAP AND.025"PLUG GAP..