O.S. Max FL-70 4-Stroke model airplane engine is approximately 20% lighter than the FS-70SII owing to a plastic cover plate, redesigned mechanism and smaller number of parts. Easier handling 60W airbleed-type carburetor. Ringless piston/liner set for easier maintenance. Redesigned muffler pressure system for stable power and response regardless of fuel level in tank. Two year limited warranty. This product includes one O.S. Max FL-70 4-Stroke Engine with F-4030 silencer, one T-fitting (for easier re-fueling). One type F glow plug. One instruction booklet. One O.S. decal sheet.

Fuel: 5%-15% nitromethane with 18% lubricant. Synthetic, castor or a combination of synthetic and castor lubricant blend may be used. NOTE: Certain four-cycle fuels cannot be used due to low oil content. When choosing fuels for this engine, the modeler must be sure to select a fuel with at least 18% lubricant content. Misc. starting and field equipment.