Deadped Ryan Wrote:
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> What ross means, is that at 8000rpm and two
> cylinders selected, it's going to read 8000rpm.
> Try four cylinders. Then you can just double
> whatever your tach says.
you would need 12v dc to power this tach. I ran one on my 60mph lawnmower. Briggs motors have a waste spark. One pulse per revolution, just like a moped. On the 4cyl setting the tach will only read half, which would give you a 16000rpm range.