1984-1986 Mercury Force 9.9 and 15HP Outboards Service Manual, Page 34Get this manual
2Turn current control knob toHIor until eter reaches full scaleObserve spark gap and turn current control knob toLOand selector knob toOFF" 5Return curren co ntrol knob toLO" and selector knob toOFF "
6Remo ve all connections and test coil continuity Tast Call Continuity1Turn selector knob toDISTRIBUTOR RESISTANCE"position With test leads apartturn meter set nob until meter painter lines up with set mark on ingside at meter2Connect small red test lead to either pr ary terminalConnect sma ll black test lead to remaining primary termina lFigure 14
3If spark gap fired steadily, the coil is good at highspeed If spark gap did not fire steadily, replace the coil4Re move the large red anal yzer lead from coil and proceed to next testTesting Call Surf.calnsuletlon1Plug test probe into jack in fro nt al analyzer Figure
CURRENT CONTROL KNOB
SELECTOR KNOB