How to Build a Metering Valve to Run Engines on Propane

Fuel your engine with propane by building these simple metering valves

Homemade Carb Mixer
Wayne Summers’ homemade carb/mixer is simple and effective. Left to right: Complete mixer showing the 1/2-inch intake port; complete mixer showing threaded engine end and 1/4-inch bore; gas line elbow with pressed and drilled brass plug; old carburetor needle valve.
Photo By Wayne Summers