As long as you have a typical ignition coil you should be able to connect an automotive tach to it. Connect the tach green (usually) wire to the terminal on the coil that has the CDI wire going to it.
You'll also need to find a convenient location to connect to the buggy switched power, ground and lights (if you want the tach illuminated). It can be a hassle. That's why so many have gone to using the self-powered Tiny Tach or the TrailTech Vapor-type meters. _________________ _________________
2 Polaris RZRs & a Dune 150. Ridge Runner--Gone. Yerfdog 3206--Gone (but you never forget your 1st!).
Buggy pictures, mods, ideas, how-to's:
http://tinyurl.com/8ltm8