Your correct that a propane setup for a small engine requires 2 regs. One reduces tank pressure to an intermediate of 1 or 2 bar. The other decides how much gas to send to the mixer (carb) depending on intake manifold vacuum (ie demand). Some demand regs will work at tank pressure. Others not.
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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