Re: Measuring RPM on a Magneto Tractor

Posted by Bob M on September 01, 2004 at 12:33:59 from (165.170.128.65):

In Reply to: Measuring RPM on a Magneto Tractor posted by Steve W (NY) on September 01, 2004 at 11:34:35:

Steve - A few tach/dwell meters will work on a mag system, though most probably will not. (My Mac Tool tach/dwell will not...)

To connect, ground one meter lead and connect the other to the kill terminal on the side of the mag.

A couple other ways to measure RPM:

Buy a "Tiny Tach". These work by induction - a sense wire is wrapped around one plug lead and will display RPM whenever the engine is running. (Added bonus - a Tiny Tach will record engine hours and display accumulated hours when the engine is shut down)

Low budget method: Run another 4 cylinder engine alongside your BN and synchronize the RPMs of both by ear. Then use the tach/dwell on other engine (or other engine's tach if it has one...) to determine the BN's RPM. ...Bob

• tiny tach

Follow Ups:

• Re: Measuring RPM on a Magneto Tractor Rob in Ore 16:52:19 09/01/04 (0)

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