OS 25LA-S (Silver) - New Boxed Stunt Engine with silencer

This is the O.S. Max .25LA-S Silver Finished Control Line Engine with Muffler.

FEATURES:

• LA-S series engines Control Line engines replace the Carburettor with a Venturi that keeps the engine running at a constant speed
• Remote Needle Valve reduces chance of injury from spinning props
• Nylon backplate mount and ratchet spring help hold settings against "creep" caused by vibration
• An O-ring helps seal the needle from fuel and air leaks
• Heavy-duty webbing reinforces the one-piece crankcase in high stress areas.

INCLUDES:

• One .25LA-S Control Line Engine with #E-2030 Muffler
• Two 2.5 x 24mm Phillips head muffler mounting screws
• #A3 Glow Plug
• Decal Sheet
• Instruction Manual

REQUIRES:

• Fuel: 10% to 20% Nitro and 18% lubricant content is recommended
• Prop: Break in: 9x6 Aerobatic and Sport: 9x6, 10x5

SPECS:

• Displacement: 4.07cc (.249 cu in)
• Bore: 18mm (.709")
• Stroke: 16mm (.630")
• Output: 0.6 PS, 0.59 HP @ 15,000 RPM
• Practical RPM: 2,000 - 16,000 RPM
• Weight: 185.5g (6.54oz)
• Crankshaft size: 1/4-28
• Distance between mounting tabs: 1.89" (48mm)
• Distance between mounting holes on opposite side: 1.46" (37mm)
• Distance between mounting holes on same side: .59" (15mm)
• Width of crankcase below mounting tabs: 1.10" (28mm)
• Height from bottom of crankcase to top/cylinder head: 2.93" (74.4mm)
• Length from end of crankshaft to backplate: 3.43" (87.1mm)

Needle Settings:

• High Speed: 1.5 turns out from fully closed
• Mixture Control (low speed): Tip of the needle half way across the small hole in the front of the carb