Reply To: Tachometer Hook-Up

[dsaulsbury]

I have used a Tiny Tach on all of my old OMC racers for years with success. I presently use one on my Johnson Stinger 3 cylinder. I found that on alternate firing motors to put the pickup wire on the bottom cylinder and route the wire down into the bottom of the pan to keep it away from any chances of picking up any stray pulses. I have been told they don’t work well on Mercury products that use distributors as the ignition is very “noisy” and confuses the pulse pickups. I never checked to see how accurate they were. I expected they were at least consistent so that would be fine for checking out props. The battery in mine worked for years beyond the the stated life.