O.S. Engines FS110-A Ring 60Y Carb F5040 Muffler OSM35410
OSM35410 O.S. Engines FS110 Alpha 4-Stroke W/F-5040 Silencer

O.S. Engines FS110-A Ring 60Y Carb F5040 Muffler OSM35410

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O.S. Engines muffler adjusts in or out with threaded header pipe and rotates a full 360ยบ for more mounting options with fewer modifications. Continuous lubrication system recirculates excess oil instead of venting it for better performance and longer engine life 60Y carburetor with longer venturi for leak-free seals, less fuel blow back and optimal air/fuel mixing. Two year limited warranty.


Fuel: 5-20% nitro content with at least 18% lubricant content
Propeller: Sport & Aerobatic 13 x 9-11, 14 x 8-10 Scale 15 x 8, 16 x 8
Electric starter and other field equipment

Displacement: 1.10cu in (18.0cc)
Bore: 1.20" (30.4mm)
Stroke: 0.98" (24.8mm)
Practical RPM: 2,000 - 11,000
Power Output: 1.8 PS, 1.77 HP  10,000 RPM
Weight: 19.2oz (600g)
Muffler Weight: 2.3oz (72g)
Crankshaft Size: 5/16-24
Height from Mounting Tab/top of Cylinder Head: 4.1" (103.8mm)
Height from Crankcase Bottom/top of Cylinder Head: 4.9" (125.4mm)
Width at Mounting Tabs: 2.4" (61mm)
Width of Crankcase Below Mounting Tabs: 1.7" (42.6mm)
Length from Carb to Prop Washer: 4.5" (114.5mm)
Length from center of Crankcase to Prop Washer: 2.6" (66.5mm)
Length from center of Crankcase to center of Carb: 1.8" (46.3mm)
Needle Valve Setting: High Speed: 3-4 turns from closed
Mixture Control (low speed): Flush with carb body, then 3/5 turn in.

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