Re: Tachometer ????
I got one like that on my Sportster but the vibration shook it to death rather quickly... I think it lasted a month or 2 riding it daily but those 2 screws in there that secure the gauge dial came out and now the whole dial just bounces around inside the tach with no easy way to open iit up and fix it.
There's also a good chance it would read double since most of these are set up for a 4 stroke, I thought I saw an analog one somewhere before that would read a 2 stroke accurately but it was rather pricy.