MOTOR OS GF30 GASOLINE 4T MUFFLER 3A000

This is the O.S. Engines GF30 4-Stroke Gasoline Engine.

FEATURES

• Ideal for models designed for 1.20-1.50 glow engines or 20cc gasoline engines
• Same firewall mounting system as the O.S. GT22
• Rear mounted O.S. designed carb with PD-08 fuel pump
• Lightweight IG-07 igniton module accepts up to 2S LiPo power
• Positive Crankcase Ventilation (PCV) helps keep model and environment cleaner by eliminating blow-by gas and oil waste
• Two year limited warranty through Hobby Services beginning at date of purchase

INCLUDES

• GF30 4-Stroke Gasoline Engine, Spark Plug, Muffler, Ignition
• Module and Instructions

REQUIREMENTS

• 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: 16x10-12, 17x8-10, 18x6W-8
• Mounting standoffs, length depends on aircraft
• Gasoline safe fuel tubing and fuel filter

SPECIFICATIONS:

• Carburetor Adjustments;
• Needle Valve: Slowly open throttle fully after engine is started. Close needle valve in 30-45° increments. When RPMs start to decrease, close needle valve 60-90° further. Open slowly at 15° per second until maximum RPM is obtained, then open 60-90° further from max RPM point
• Mixture Control Valve: Preset at nearly best position. Do not adjust until break-in is completed. Start engine & open throttle fully to warm up engine. Set idle around 2000RPM from throttle trim on transmitter. Move throttle from idle to fully open several times & measure idling RPM with tach. If idling is unstable & RPM decreases gradually, the mixture control valve is set rich. If RPM increases at idling or engine doesn't respond quickly, the mixture is too lean. Stop engine & turn mixture control valve 30° clockwise if mixture is too rich, or 30° counterclockwise if too lean. Repeat above procedure until idling RPM becomes stable. For final main needle adjustment, set idling RPM by transmitter depending on prop size and aircraft model. Move throttle stick to full throttle quickly and then to full throttle slowly,
  adjusting needle 15° counterclockwise if too lean, or 15° clockwise if too rich.
• Displacement: 1.827 cu in (29.94 cc)
• Bore: 1.496" (38mm)
• Stroke: 1.039" (26.4mm)
• Practical RPM Range: 1,800-9,000
• Output: 2.8s/2.76hp @ 9000RPM
• Weight: Engine, 34.9oz (990g)
  Muffler, 4.0oz (113g)
  Ignition Module, 3.35oz (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 Pump to Drive Hub: 5.7" (145.6mm)
• Length from Center of Crankcase to Drive Hub: 3" (76.5mm)
• Length from drive hub to end of Crankshaft: 1.6" (40mm)
• Length from Carburetor to end of Crankshaft: 7.3" (185.6mm)
• Height from Mounting Tab to Rocker Cover: 4.7" (119.6mm)
• Height bottom of Crankcase/top of Rocker Cover: 5.7" (146mm)
• Distance/Mounting Hole Centers Same Side: 0.98" (25mm)
• Distance/Mounting Hole Centers Opposite Side: 2.36" (60mm)