SA-200 RPM check

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Ok I have 1977 Sa-200 with Mag,How do i check the RPM?,,,,I have a dwell(RPM) meter but where do I hook it to?Thanks:
Reply:Originally Posted by welder99Ok I have 1977 Sa-200 with Mag,How do i check the RPM?,,,,I have a dwell(RPM) meter but where do I hook it to?Thanks:
Reply:Or use a volt meter. You should have 90-volts dc at the receptacle on the front of the machine and 66-volts dc at the studs on low idle. 88-95 at high idle on the studs, and 125 to 130-volts dc at the receptacle. Don’t pay any attention to meI’m just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
Reply:Thanks Guys for the info.....I needed to adjust the idle ,,,the voltage thing worked great....Thanks again,this place ROCKS...when you need information.