Westerbeke Vire 7, Owner'S Manual, Page: 22 / 43

Figure 8 - Fly Wheel Magneto
Adjusting the Ignition Timing
Adjust the breaker point gap as described above. Ignition (opening of breaker point gap) should
occur when the crank shaft is being rotated and the flywheel timing marker is at the level of the
lower surface of the engine right side fastening point (see picture 1). If the breaker point gap
does not open at this moment, loosen the anchor plate fastening screws slightly and turn the
anchor plate in engine rotation direction or in opposite direction, depending on whether the
opening occurs too early or too late.
When you have obtained the right setting for the anchor plate. i.e.. when the points open at the
correct moment indicated by the timing marker, tighten the screws.
The opening moment can be observed by sight or by puffing a thin sheet of paper inserted
between the points. while turning the crank shaft in the engine direction.
The timing marker setting (30
0
) is equal to the piston being 5.8 mm from its upper dead position. This
can be measured from the spark plug hole.