Tachomter

[MedinaDon]

Where can get a reliable tachometer for a 25 hp two stroke Mercury MY 2000 S/N 0T001321. it is a tiller steer with electric start with red stator. Parts book shows a tachomter connection near the switch box, but I do not see it on my motor. Service tool tach shows a cost of near $1,000.00 Does anyone know how to gat a tach that will work thats afordable? Thank you.

[boats.net]

Tiller models don't have a gauge harness to easily connect to a tach, would be difficult to install a tach on it.

[MedinaDon]

Tach

If I get the service tool, where does it get it's signal? How does a Mercury repair shops adjust low and high idle speeds? Mercury service manuals do not show anything other than say to do it. I have several electrical tools that should be able to do the same if I knew where the signal is. I find common spark plug wire tachs unreliable. I like to do things right. I am a Mercury trained mechanic from the old days. 20 years in the Carl Kiekhaefer days. Thanks again.

[boats.net]

Multi meters with rpm inductive clamp just clamps over spark plug wire. They are avialble from automovtive tool stores.