[ryanhermann]

I bought a tach from a guy that said it was from a 76 and I am wondering how to hook it up so it works right. I was looking online and it says that eletric tachs arent compatible with my 500 Fan cooled motor and they only came on free airs is this true? And How can I wire this up is to the sled if it is compatible?

 

[Old Man]

Here's a link to the 1978 wiring diagrams. The F/C show mechanical tachs with just wiring for the lighting in the tach. The F/A was the only one to use the electrical tach.

http://www.vintagesnow.com/Arctic_Cat_files/1978.pdf

 

[RJ Gleason]

You can use that on the FC engine, just connect it to the yellow wires before the hi/lo switch.

 

[ryanhermann]

Ok thanks for the help