DYNATEK ARC-2 Руководство - Страница 10

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Timing Retard

The timing retard function allows the user to retard the igni-

tion timing by a fixed ten degrees (10°) when the timing retard

input is enabled.

To activate the timing retard, the Purple timing retard wire

needs to be grounded. Removing the input wire from ground

will de-activate the retard, and fire without any delay.

Tach output

An optional tach output wire is included in the harness. This

creates a tach signal based off the input into channel 1. It will

be double the frequency of channel 1, so it should work with

standard 4 cylinder tachs, as well as with most aftermarket

electronics. It is a 12V square wave with a duty cycle of

approximately 50%.

Some vehicles read the tach signal off of one of the coil

signal wires. If this signal is not there, the tach may not

operate. In some cases, the ECU might look at the signals to

each coil, and if it doesn't see a coil firing, the ECU could shut

down the signal to that cylinder's coil or injectors. This is very

common on newer 4 cylinder bikes with coil on plug. Vehicle

specific harnesses will include a tach adaptor adapter to

correct this, if it is needed for that application. If a tach

adaptor is required on a custom application, contact Dynatek

for a Universal Tach Adaptor kit.

Troubleshooting

If the unit is not running at all, first check the 30A fuse and

make sure it is still intact. Then make sure it is getting 12V

and ground on the main power harness. If the unit is getting

12V, then look at the coil wiring connections.

If the unit is running but poorly, check the conditions of the

spark plugs spark plug boots, and plug wires. Try to deter-

mine if the problem is with one specific cylinder, or one

channel on the ignition, or if it occurs on all of them. Inspect

all wiring. Make sure the Coil Edge Select is set correctly. You

can verify this with a timing light.

In order to check the timing with a timing light, you will need

to disable the Spark Restrike temporarily.

Dynatek

164 S. Valencia St.

Glendora CA, 91741

Tech Support: 1-800-928-3962

www.dynaonline.com

ARC-2

Asynchronous Restriking CDI

2801211

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