Testing Boyer

Timing Plate:

• Connect a Ohm Meter's leads to Black/Yellow and Black/White wires.
• Turn Ohm meter on and read resistance.
• 137 Ohms is a typical resistance for the Triumph and Norton timing plate.
• The resistance of individual coils should be approximately the same. If one coil measures 66 ohms the other should also measure 66 ohms.

If there is no reading on meter, the individual coil resistances vary greatly, or reading substantially lower than expected:

 Broken wire or coil wire insulation failure.

                 Replace Timing Plate