what kind of tach do I need that will work on a 1969 25hp Johnson tiller?, model no. 25R69D. looking to test some props and want to see the rpms she hits.
what kind of tach do I need that will work on a 1969 25hp Johnson tiller?, model no. 25R69D. looking to test some props and want to see the rpms she hits.
I bought one of these: Neiko 20713A Digital Tachometer. Non contact Laser Photo.. Seems to work well on just about anything that spins! (Used it to check the boat tach readings.)
I looked at a couple of tiny tachs on line and they say that they have an internal battery that only lasts two years and can't be replaced??? Is this correct?
If I were buying one (I'm not), I would be seriously considering the non-contact laser-type. Matter of fact, on second thought, I may look into one for using on my machine tools.