Polaris TX Starfire Owner's Manual page 62

THREE CYLINDER IGNITION (Con't.)
6. Other Precautions
6.1 Measuring of Characteristics of the Ignition System
When measuring characteristics of the ignition system
by using a motor, there would not be any troubles if the
generator runs in regular direction and each connected
portion is normal. However, to measure the spark output
in inverse revolution, be sure not to raise its speed over
500 RPM. Since this unit has applied a circuit which dis-
solves only ignition signals in inverse revolution not to
supply spark in such occasion, it may cause charging vol-
tage of primary condenser too high value at high speed
operation. When spark lengths are measured by three
needle gap, set the gap length 1 mm except to use testing
coils.
NOTES
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