Coil instead of spark plug wire for digital tach?

I put a digital tach/hour meter on spark plug wire but doesn't work. Do I need to attach it to the coil? Where is the coil to attach to?

Thanks for your help, Jeff

The coil on the 450's is in the spark plug connector itself. You have to wind the wire around it at the top of the valve cover...SC

Thanks Steve for the speedy response!

So it is the vertical cylinder part of plug connector not the horizontal portion above it?

I would have never guessed that, thanks for the help!


This is how you need to wrap the wire around the coil.


Thanks Blue_One that clarifies it! Thanks for running a great forum!

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now