1972 Johnson 4HP Outboard Motor Service Manual, Page 34Get this manual
points have installed, adjust points to open at the first timing mark to allow for seating of the blockfRecheck timing as described in (d)
gIf timing light or meter is not available, use feeler gage to adjust pointsPoint gap should set to .020 inch (.022 inch for new points) with the arm the high of the (fuH open)hRotate crankshaft through 1800 clockwise, and repeat entire procedure for second set of pointsiReattach leads to breaker assemblies, and replace flywheelCheck spark at each cylinderTighten flywheel nut to torque specified in Section 2Connect lead wires to spark plugs, making sure that firm contact is made at the spark plug terminals, and that lead wire terminal in makes contact with the conductor in the lead wire