Best Air Cooled Engine

X-PRO 125cc Kids Dirt Bike Pit Bike Youth Dirt Pit Bike with 4-Speed Manual Transmission Zongshen Engine,Big 14'/12' Tires，Green

123.7cc 4 Stroke, Single Cylinder, Force Air Cooled Engine, keeps engine temperatures reliably under control, even while idling at stoplights--for maximum efficiency and longer engine life..
Tube Cradle Frame, High Strength Steel,much heavier than others, very strong and cannot be broken easily..
Some assembly required: Assembly for dirt bikes include Handle bar brackets, wheels, brakes, number plate and fender. (May differ per model).

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox.
Race derived technology for maximum engine acceleration.
Extreme high temperature air-cooled performance and water-cooled engine performance.
Excellent shear stability to prevent viscosity breakdown.

Formulated with Trizone technology to protect all 3 critical zones: engine, clutch and gearbox.
Race derived technology for maximum engine acceleration.
Extreme high temperature air-cooled performance and water-cooled engine performance.
Excellent shear stability to prevent viscosity breakdown.

【PROFESSIONAL DIESEL ENGINE】4-stroke Air- Cooled Diesel Engine.Through advanced software analysis and optimization design, the reliability of diesel engine in structure and cooling is ensured. Optimize fuel system and intake and exhaust system to save energy and fuel..
【DIESEL ENGINE SPECIFICATIONS】Model：186F Туре：Single-cylinder, vertical, 4-stroke air- cooled diesel engine Combustion system：Direct injection Bore*stroke(mm)：86x70mm Displacement capacity(cc)： 406cc.
【DIESEL ENGINE PARAMETER】Oil System: Pressure and Splash Engine Cooling Type: Forced Air Cooling.
【SHAFT PARAMETER 】 Shaft Type: Keyed - Straight Shaft Diameter: 1" Diameter, 1/4" Keyway Shaft Length: 72.2mm (2-5/6" Length) Shaft I.D. Thread Size: 7/16-20UFN-2B, 20mm depth.
【WIDE APPLICATION】It is widely used in small agricultural machinery, such as micro-tiller, pastoral management machine, irrigation and drainage machine, generator set, small transport vehicle, small walking tractor and other fields..

【MAIN FITMENT】49CC 2 Stroke High Performance Complete Racing Engine Motor, suitable for 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter..
【COMPLETE ENGINE MOTOR】This Engine is complete with high performance cylinder head (40mm dismeter), plug, powder coated metal pull start, air filter and 14mm/0.55'' carburettor, balanced crank, balanced flywheel, ported piston windows, up-rated CVT transmission unit..
【HIGH EFFICIENCY ENGINE】49CC mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain..
【MAIN PARAMETERS 1】Cylinder Numbers: Single cylinder, Displacement: 49CC, Stroke: 2-stroke, Bore: 44mm/1.7'', Chain: 25h, Gas-oil Mix Rate: 25:1, Gear Box Reduction Rate: 3.1:1, Cooling: Air Forced Cooling, Spark Plug Size: L7T L7TC..
【MAIN PARAMETERS 2】Start Way: Recoil pull start, new style recoil, easy to pull start.
Recoil Starter Material: New style easy pull starter.
Application: for most air cooled mini dirt bikes.
Package size: 34cm x 25cm x 15cm (13'' x 10'' x 6'').

☀【Engine Specifications】Engine Type: GY6 Single Cylinder 4-Stroke.
Engine oil type: SF15W-40 not come with oil.
Carburetor Type: Horizontal Vacuum Carburetor.
☀【CVT design】CVT is mainly composed of 2 transmission belts and 2 transmission pulleys. It adopts a compact and simple design, which can seamlessly switch between an unlimited number of different gear ratios to achieve smooth acceleration..
☀【Lubricating oil filter】Helps to remove solid pollutants in the lubricating oil, greatly reducing the wear of the friction pair and prolonging the service life of the engine. High-flow Oil Pump: Reduces the wear of friction pairs and prolongs the engine service life..
☀【Forced air-cooled engine】The outside of the cylinder is covered with metal fins. When the cooling fan blows air over the fins, the heat generated by the engine is directly released into the air. It has the advantages of simple structure, light weight, wide adaptation to climate change, quick start-up, and no need of radiator..
☀【Logistics and Service】Sometimes the carrier is not very good at taking care of our packages, so it may cause some damage in trans....

Race-derived technology for maximum engine acceleration.
Extreme high temperature air-cooled performance and water-cooled engine performance.
Excellent shear stability to prevent viscosity breakdown.

【Excellent Engine】200cc 250cc 4-stroke single cylinder ATV air cooled engine motor with 5-speed manual transmission, upgrade your ATV engine to provide more powerful power.
Please Note: installation manual is not included.
professional installation is highly recommended..
Engine Type: Single Cylinder, 4-Stroke, Vertical.
【Specifications 2】Fuel Supply: Carburetor Atomization.
Minimum fuel consumption rate: ≤354 kw.h.
【Compatible With】OEM 200cc 250cc 4-stroke Engine with Manual Transmission fits most Chinese made ATV 200cc 250cc since the mounting holes are same, please do not buy if your engine with starter bottom mounted since the mounting holes are not same.It is 200cc 250cc 4-stroke Engine with Manual Transmission (4 forward).
【Package Includes】1 X Engine assembly.
This engine assembly comes with Intake Pipe....

49cc 2 stroke Gas Scooter Engine Complete With Racing Air Filter for ScooterX EVO Pep Boys Zoom Stand Up Scooter Bicycle Motorized.
49cc Air Cooled Complete Gas Scooter Engine with Red CNC Racing Intake Manifold High Flow Air Fileter.
The engine with built-in square exhaust muffler, centrifugal clutch and gearbox. The engine comes with 3 pieces of output sprockets (14,17 and 20....
This is the most commonly used engine for gas scooters, pocket bikes, and many other applications.The engine is compatible with all 43cc 49cc and 52cc....
Kit Includes: 1 x 49cc engine with racing air filter, 1 x 14t sprocket, 1 x 17t sprocket, 1 x 20t sprocket.