The stock Suzuki 1.3L I-4 would be relieved of its stock carburetor and much of the related equipment.
Another quality of propane is its low carbon content, which makes it widely recognized as a low-polluting, clean alternative fuel. The low carbon content also means that the oil won't get dirty, so oil-changing intervals are extended as is spark-plug life. Since propane is under pressure, most typical carburetor items, such as the float bowl or needle and seat, and even a fuel pump, are not needed. As a result, it's impossible to flood the carb, and the regulator automatically compensates for altitude change so no rejetting or computer-tweaking is required. A propane-powered engine will run at any angle and even under water, since the system is completely sealed. Propane also won't go bad if left unused for long periods of time and doesn't require frequent filter changes to ensure clean-burning qualities.
Propane: Not Just For Barbecues
Propane is a liquefied petroleum gas produced from the refining of both crude oil and natural gas. Inside a storage tank, it exists as a liquid and a vapor. As the vapor is released, it can be used as a clean-burning fuel. Propane was first discovered and developed in 1910, and the first propane-powered vehicle was up and going by 1913. By 1999, the U.S. was consuming more than 19.6 billion gallons of propane. Approximately 90 percent of the U.S. propane supply is produced domestically. It is most widely used as an alternative fuel, powering 4 million vehicles worldwide and more than 350,000 vehicles in the U.S., which includes more than 80,000 taxis, buses, and delivery and fleet vehicles.
We needed a solid mounting location for the regulator and decided on the stock battery location at the passenger-side inner fender near the firewall. | 
With the regulator mounted, we connected the supplied heater hose. The regulator is tapped into the stock heater-core lines to keep the regulator from freezing. Here the fuel line to the mixer/propane carb is secured to the regulator with a supplied hose clamp. | 
The mixer and adapter plate were bolted atop the manifold using the provided hardware. Once in place, the fuel line from the regulator was secured to the fuel inlet on the mixer. Here, the stock throttle linkage is installed to the mixer. It was necessary to modify the linkage so it would function properly with the new propane carburetor. |
The heater-hose connections were then completed. Coolant from the radiator will circulate through the regulator so it won't freeze as the propane passes through it. | 
The propane supply line was then secured to the regulator. The fuel line was then routed rearward to where we'll mount the propane tank. | 
The supplied open-element air cleaner was then installed. After start-up and a test-drive, we will likely need to advance the timing to compensate for the higher-octane propane fuel. |
We installed a new 8-gallon clear tank from GotPropane.com to the rear floor of our stretched Samurai. The clear tank allows us to visually monitor consumption. Tank-mounting brackets are included with the GotPropane.com kit. | 
With the tank in place, we routed the fuel supply line back from the regulator and used the supplied bulkhead fittings to mount it through the floor. | 
The GotPropane.com conversion kit features a quick-release hose connection to the tank, making swapping tanks or removing for fill-up an easy task. The kit also includes a pressure-relief device in case the tank becomes overpressurized. And, of course, with propane, fuel will not spill out of the tank or slosh inside the carburetor at extreme angles or upside-down. |