OS Max OSM11532

This is the O. S. Max .15LA Engine with Muffler. Meets requirements of beginners and sport flyers. *** TWO YEAR LIMITED WARRANTY *** One-Piece natural finish crankcase Non-ringed cylinder construction Two Bronze Crankshaft Bushings (sometimes called oilite bearings) Schnuerle Porting (Schnuerle scavenging) Side Exhaust Nylon Backplate with Remote Needle Valve #10G carb with remote needle valve assembly Expansion-Style Muffler #871 .15LA Engine w/Carb Instructions, Decal Sheet, and Warranty Card Two 2.6x23mm screws to bolt muffler to engine 1.5 inch length of fuel tubing for remote needle valve One #A3 glow plug Glow Fuel with 5-15% Nitromethane and 20% (minimum) lubricant content Glow starter, plug wrench and field equipment Construction: Aluminum 1-Piece Crankcase, Piston, Cylinder Head, Crankshaft, Connecting Rod, and Crankshaft. Nickel-Plated Brass Cylinder Displacement: 2.49cc (0.1517 cu. in.) Bore: 15.2mm (.598") Stroke: 13.7mm (.539") Horsepower: .41 BHP at 17,000 RPM Weight: 5 oz w/o muffler (6.5 oz w/muffler) Length: 56.5mm (2.16") distance/backplate to front of drive washer 76.5mm (3.01") distance from backplate to prop adapter Width: 24.8mm (1.0") width of engine neglecting mounting flanges. Distance Between Mounting Holes Same Side: 14.4mm (.56") Distance Between Mounting Holes Opposite Side: 33mm (1.29") Height: 61mm (2.42")from bottom of mounting tab/top of cylinder head Crankshaft Thread Size: 5mm Recommended Props: Break In: 8X4 Trainer and Sport Models: 7X5-6, 8X4-5 Practical RPM Range: 2,500 - 18,000 RPM High Speed Needle: 1.5 turns out from fully closed Low Speed Needle: Tip of the needle half way across the small hole in the FRONT of the carb body. This engine will work well with any of the following glow plugs: A3, A5, or A8. tlw 6/22/07 ir/jxs updt lmm 3/27/09