BoatingCop
Chief Petty Officer
- Joined
- Aug 28, 2007
- Messages
- 407
I have a 1991 Johnson 175 VRO, non system check, with a fully functional VO including the no oil warning. I was going to get a factory OMC tach for it and while looking I saw that the System Check tachs were roughly the same price. Did they make a plug and play type adapter that would work on the older VRO engines for the the oil warnings and the overheat warning using a system check tach?