SYSTEMS OPERATION
(90N1-90N6120)
The automatic timing advance unit will change
the timing 8 degrees. This change starts at approxi-
mately low idle rpm and is operating up through
the rated speed of the engine. No adjustment can
be made to the automatic timing advance unit.
Lubrication oil for the timing advance unit
comes from drilled holes that connect with the
front bearing for the engine camshaft.
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