How to check rpm


Old 08-23-06, 06:40 AM
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How to check rpm

How do you check rpms on a lawnmower engine?
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Old 08-23-06, 07:06 AM
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There are a couple types of tachometers that can be used.

Old 08-23-06, 08:48 AM
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What's that thing do, clamp an inductor around the spark plug wire..?
Old 08-23-06, 08:50 AM
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any cheaper way of doing it?
Old 08-23-06, 07:49 PM
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Get yourself a vibra tach. It is the most inexpensive and very accurate tool a mechanic should have. Very simple to use, just hold it on the motor, and when the wire vibrates to the most widest area, that is the RPM.


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