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2CT8A-2/6, 2AT8A-2/6 AND SIMILAR

Tachometer
This tachometer will work on 2 stroke engines that have either 2 or 6 imp. per revolution.

Note! Do not exceed 30 volts ac.

For lighting coil hook-up:
Some engines have 2 lighting ( charging ) coils. You can connect the tach to either of these coils. Use the lower wattage coil ( USUALLY GREEN ) for the tach. keeping the higher wattage coil ( USUALLY YELLOW ) for lighting and charging the battery.

Connect pin #2 to one of the lighting coil wires.
Connect pin #5 to the other lighting coil wire.

The loop wire is usually left uncut.


For Ducatti ignition or systems with a dedicated wire for tachometer use:
Connect pin #2 to the grey ( tachometer lead ) wire.
Connect pin #5 to engine ground.

The loop wire is usually cut.

 

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