O.S. Max IL-300 Dia-Star 4-Cylinder, 4-Stroke Inline Limited Edition Collector's Engine commemorates O.S. Max's 70th anniversary. Vertical, serial four-cylinder engine. True-to-life model that replicates a style of engine widely used in the early 1900s. Inline design reduces need to cut cowl of airplane and preserves the scale appearance. Two year limited warranty. This product includes O.S. Max IL-300 Dia-Star 4-Cylinder, 4-Stroke Inline Engine with aluminum mount, four type F glow plugs, four 5x25mm engine mounting screws, four 5x15mm mount attachment screws, four glow plug clip leads, one ground lead, valve adjusting kit, instruction manual and two decal sheets and four exhaust pipe assemblies.

Fuel: Airplane blend 5-20% nitro with no less than 18% lubricant. NOTE: If using 4-stroke fuel make sure it has at least 18% lubricant content. Propeller: 18x12 or 20x8 for break-in 18x10-12, 20x8, 22x8 after break-in. External glow driver socket. Glow Starter: With 1.5V dry cell or preferably 1.2V NiCd battery.

Mixture Control Valve Setting: Factory set, turn 1/12 turn (30°) clockwise to lean mixture or 1/12 turn (30°) counter-clockwise to richen mixture. Needle Valve Adjustment: After engine is primed, approximately 1/4 turn open from fully closed.