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  Electric Motors, Engines & Accessories > Engines R/C Gasoline > Engines R/C Gasoline - 3.01 & Up Bookmark this Page

O.S. - OSMG0800 OSM39400 39400 531028022584 4531028022584
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O.S. GF40 4-Stroke Gas w/Muffler
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O.S. GF40 4-Stroke Gas w/Muffler
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On-line Videos: Video 1 (YOUTUBE)
Instruction Manuals: Manual 1 (6.3 MB)
Tower Catalog Page: 199

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Tech Notes
           This is the O.S. Engines GF40 4-Stroke Gasoline Engine.

FEATURES: Ideal for aerobatic or scale aircraft Same firewall mounting system as the O.S. GT33 Walbro carburetor witn integrated choke rod guide that simplifies installation, choke rod guide is integrated with backplate Positive Crankcase Ventilation (PCV) helps keep model and environment cleaner without blow-by gas and oil waste Two year limited warranty through Hobby Services beginning at date of purchase

INCLUDES: GF40 4-Stroke Gasoline Engine, CM6 Spark Plug, Muffler, Ignition Module and Instructions

REQUIRES: 2-cycle oil, see SPECS Ignition Battery: 4.8-6.0V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack LiPo battery requires voltage regulator Propeller: 18x8 for break-in, 18x8-12, 19x8-10 20x8-10 Mounting standoffs, length depends on aircraft Gasoline safe fuel tubing and fuel filter

SPECS: Displacement: 2.438 cu in (39.96 cc) Bore: 1.57" (40mm) Stroke: 1.251" (31.8mm) Practical RPM Range: 1,800-9,000 Weight: Engine, 42.3oz (1200g) Muffler, 4.0oz (113g) Ignition Module, 3.4oz (95g) Gasoline/Oil Mixture: 30:1 - 50:1 25:1 fuel/oil mixture if brand of oil states 50:1 mix Crankshaft Size: UNF5/16-24 Length from Backplate to Drive Hub: 4.7" (118.5mm) Length from Center of Crankcase to Drive Hub: 3.1" (78.6mm) Length from drive hub to end of Crankshaft: 1.6" (41mm) Length from Carburetor to end of Crankshaft: 7.8" (197.6mm) Height from Center of Crankshaft to Rocker Cover: 4.9" (126.7mm) Height bottom of Crankcase/top of Rocker Cover: 6.2" (157.2mm) Distance between Vertical Mounting Hole Centers: 2.1" (54mm) Distance between Horizontal Mounting Hole Centers: 2.7" (70mm) Width of Cover Plate: 3.3" (83.7mm)

jxs 05/01/13 ir/jxs

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Accessories Needed
This is the O.S. Engines GF40 4-Stroke Gasoline Engine. FEATURES: Ideal for aerobatic or scale aircraft, walbro carb w/integrated choke rod guide, ignition module, F-6040 muffler, CM6 spark plug REQUIRES: Gasoline, 2-stroke engine oil, standoffs, fuel tubing, propeller 4.8-8.4V battery for ignition module

Accessories for the O.S. GF40 4-Stroke Gas w/Muffler

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  Special Stock Number Product Description Parts Saver Eligible Tower's
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 LXRZ80 Great Planes Gasoline Fuel Tubing 3'
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4.49   In Stock
 LXS626 Klotz Gas RC Modelube 16 oz
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8.19   In Stock
 LXHY45 Top Flite 18x8 Power Point Propeller
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14.99   In Stock
Subtotal for this Group of Accessories: 27.67  
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