O.S. 21XM outboard marine engine has simple construction for easier maintenance translates to more time in the water, less time on the bench. Comes with pre-installed tiltable mount for adjustable "plane", and also comes with a carbon propeller. This engine would be suitable to use where a 3.5cc (.21 size) engine would be used, even a retrofit to older hull. This product includes one assembled 21XM marine outboard dngine w/mount, outdrive unit, muffler, water-cooled head, starter cone, steering bracket, and #20J Carb. One throttle linkage holder. One water pick-up tubing. One fuel pressure tubing. One #8 Glow Plug. One propeller.

The fuel O.S. recommends is anything with at least 18% or more total lubricant, and a nitro content of 10% to 30%. Some fuels do not meet these requirements and may damage the engine. Glow plugs appropriate for this engine are as follows; For 10-20% nitro use a #8 plug. For 20% or greater nitro use a #A5 plug