AutoMeter RPM SWITCH/REV-LIMITER; PRO-CONTROL; FOR EXT. COIL MAGNETO; INTERRUPTER

Can be used as a rev-limiter or RPM switch. As a rev-limiter, it guards against over-revving by allowing 100 power until reaching the pre-set RPM level, then interrupts ignition power for a fraction of a second to prevent over-rev.