Carburetion and Other Factors which Affect Propane Fueled Engines

Many propane conversions result in less than optimum performance because of a lack of information concerning variables and their resultant effect on engine performance, economy, and durability. Factors such as carburetor size, air-fuel ratio, spark advance, air cleaner restriction, exhaust back pressure, intake manifold heat, voltage requirements, spark plug selection and gap, riser height and design, and carburetor orientation are examined to increase the basic understanding of this fuel.