Tiny Tach on Etec

[Battfisher]

I'm new to this forum - so not sure I'm in the right place for this question - but I've got a new Etec 25 hp (SWEET motor), and want to put my Tiny Tach on it. I googled up some older posts and see that it's been done, and the the preferred location for the wire is the lower spark plug but that the upper plug (MUCH easier to access) works too.

My question is - what do I attach the ground wire to? The factory installed ground appears to be 28 gauge or so (thinner than my thinning hair) and is only about 10" long, so I don't have much reach from the connection location. I can extend the ground if necessary, but slicing such a small wire is something I'd rather not do.

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[boats.net]

The ground wire can be hooked to any metal surface that is grounded by the battery or motor.

[Battfisher]

Thanks - looking for a more specific location on my Etec 25 - this is my first small motor and don't have much experience. How about the screw on top of the flywheel?

[boats.net]

You don't want to hook to anything that moves or where a wire can get caught in something that moves.