Mallory supermag 3 Tacho wiring

[The yob]

hi

Can anyone please advise me how to wire a Mallory supermag 3 to a Tacho ? sounds like a simple question but never wired a tacho to a mag!

many thanks

[MotorPsycho]

you'll either need a cable drive take off on the mag to a cable drive tach
or a tach adapter to run a standard tach off the magneto

[Time Machine]

Magneto Signal Converters can be got from AutoMeter, part number 9117 or 9118. People have a lot of trouble with noise/interference on them though and I know some people who at least used to swear by a mechanical tach, not sure if they still do.

You might have a tach which is designed to use an inductive pickup - this works with a magneto. If this is the case the pickup goes around the lead from the positive terminal of the coil to the magneto. AutoMeter made a Sprint Mag tach like this, model 19233

See also http://www.donzig.com/tachometers.html

In summary, not as easy as you first thought.

Edited by Time Machine on Friday 7th August 07:49