Coil instead of spark plug wire for digital tach?

4 replies to this topic
  • JeffWR

Posted May 01, 2005 - 07:05 PM


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

  • clark4131

Posted May 01, 2005 - 07:12 PM


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

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  • JeffWR

Posted May 02, 2005 - 05:40 AM


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!

  • The_Blue_One

Posted May 02, 2005 - 06:55 AM


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

  • JeffWR

Posted May 02, 2005 - 07:48 AM


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


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