1975 Evinrude 40 HP Outboards Service Manual, PN 5093, Page 41Get this manual
eIf timing is not correct, align timing fixture and first timing markAdjust pOints until the meter or light indicates an open circuitSee Figure 4- 35fRecheck timing as described above h Rotate crankshaft through 180 clockwise, and repeat entire procedure for second set of pOintsiCheck crankshaft and flywheel tapers for any traces of oilThis assembly must be perfectly dryswab tapered surfaces with solvent and blow dry with compressed airInspect both tapers for burrs or nicks
gIf timing light or meter is not availableuse feeler gage to adjust breaker pOintsPoint gap should set to .020 inch (.022 inch for new points) with the breaker arm rubbing block on the high lobe of the cam (full open)
NOTE DO NOT permit solvent used to clean tapers to wash oil out of oiler wick
j Install coils on cylinder heads and connect leads
kInstall flywhe elCheck for spark on each cylinder by connecting the spark plug high tension leads to spark checker (Stevens Experimental CoPart #S-21 or S-13), spark gap set to 716", and cranking the engine with ropeIf spark jumps gap, tighten flywheel nut to torque specified in Section 2