RussellSwansboro
Cadet
- Joined
- Dec 6, 2018
- Messages
- 6
I work at a dry stack boat marina and I just got an old Aqua Meter tachometer that was laying behind a shelf. I’m trying to figure out how to wire into my little project boat (1985 17ft Alindale well/net boat). The boat has a 2003 or 2001 Tohatsu 25hp 2 stroke (M25C3). I can’t seem to find a signal wire, but I have seen tach’s with the signal wire wrapped around the spark plug wire. The tach has four wires. It states what two of the wires go to (ground and pulse source) but I can’t seem to figure out what the other two black wire meant for. I’m sure at least one is for a power source. If anyone has any idea about it or even a small lead I can go on, please let me know