How-to Build metering valves to run engines on propane

摘要

I saw a letter in a recent issue of GEM asking about propane carbs. I sent a brief email reply to the writer on how I build my propane carbs, but I thought other readers might be interested in my very simple and easy way to build a metering valve. Start with a 5/8-inch piece of brass rod 2-1/2 inches long. Drill a hole all the way through that is 10 percent of the bore of the engine it is going to be used on.