tachometer question

[JoshKeller]

Anyone know of a tachometer that will work with a 1978 85 hp johnson?

I've been looking at the ones in Cabelas, but cant justify spending $85 on one only to find my motor is too old for them...

Heres the harness.

http://cabelas.com/cabelas/en/...21320

Heres the gauge.

http://cabelas.com/cabelas/en/...01254

[rudetech1]

The guage will work, it is adjustable for output and comes with instructions to set it for your motor. Your local dealer should have a guage for the motor. Might be quicker than cabelas, just a thought.