GY6 50cc 4 Stroke Engine with CVT Transmission Auto Clutch for GY6 50 Motor Chinese Single Shock Scooter

GY6 50cc 4 Stroke Engine with CVT Transmission Auto Clutch for GY6 50 Motor Chinese Single Shock Scooter

Sale Price: Starting at: $339.95
Model Number: 308-999031
Shipping: $49.50
This Product not eligible for Flat Rate or Free Shipping. See Details
Availability: Ships from U.S Warehouse. Most customers receive within one week.

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4 Stroke GY6 50cc Engine Auto with CVT Transmission, Electric/Kick Starter for Single Shock Scooters

Model Number:#308-999031
Item Condition::Brand New
Color:Black Cover

Brand New High Quality GY6 Engine, 50cc
Extension Long Case, Use 729 Belt, Air cooled, CVT 4 Stroke, Auto Clutch, Electric Start.
It also fits for most China made 50cc Single Shock Scooters.

  • Compatible Vehicles:
    50cc GY6 Single Shock Scooters
    50cc China made Single Shock Scooters
  • PLEASE NOTE: Please measure the physical size to be sure you get the correct one.

    Engine Model 308-999031 Ignition Method CDI
    Engine Type Single Cylinder, 4-Stroke, 2-Valve Lubrication Pressure/splash
    Cooling System Air Cooled Fuel Supply Carburetor Atomization
    Horsepower 2.82HP/6500Rpm (2.1KW/6500Rpm) Starter Electric/Kick starter
    Max. Torque 3.1N.m/5500rpm Transmission CVT
    Min. Stable Idle Speed 1600±150r/min Clutch Shoe-type Automatic Centrifugal Dry Clutch
    Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h) Cylinder Diameter 1.54" (39mm)
    Carburetor Model PD18J Piston Stroke 1.63" (41.5mm)
    Carburetor Type Horizontal Vacuum Carburetor Bore & Stroke 1.54" x 1.63 " (39mm x 41.5mm)
    Spark Plug Model A7TC Cylinder Working Volume 0.01 Gallon (49.5ml)
    Fuel No. >=87# Compression Ratio 10.5:1
    Lubrication Model SF15W/40-SE Ignition Type CFW
    Lubrication Capacity 0.20 Gallon (900ml)

    1. CVT: CVT consist mainly of 2 transmission pulleys and 2 transmission belts. It’s compact, simple design offers seamless shifting between an unlimited amount of varying gear ratios, allowing a smooth rate of acceleration.

    2. Crank Shaft: The engine is low speed with high torque and has large diameter bearings for crankshaft connecting rod, increasing the reliability of the bearings.

    3. Forced Air-cooled Engine: There are metal fins covering the outside of the cylinders and the heat generated by the engine is released directly into the air when the cooling fan blows air over fins. It has the advantages of simple structure, light weight, wide adaptability to climate change, rapid start up and no need of radiator.

    4. High-flow Oil Pump: Reduces the wear of friction pairs and prolongs the engine service life.

    5. Lubricating Oil Strainer: Helps removing solid contamination from lubricating oil, largely reducing the wear of friction pairs and prolonging the engine service life.

    6. Aluminum Cylinder Head & Body: Improves the heat dissipation capability, cuts the weight and increases the torque of the engine.


    The quality engine system production complies with the requirements of ISO 9001:2000. All the engines have passed the 200-hour enhanced durability bench test and the 20000 km road test. The engine has the similar performance, facility and reliability as many brand engines, such as Honda, Yamaha, Kawasaki and so on. It also obtained the DOC authorization. Please do not compare our engines to other low quality engines, we only sell high quality engines.

    All engines have the identification, gears and oil labels. You can buy with confidence.

    This engine assembly comes with INTAKE PIPE and SPARK PLUG. It doesn't come with Carburetor, Battery, CDI, Voltage Regulator and Ignition Coil.

    Material: High quality aluminum cylinder head and aluminum cylinder body

    Transportation: Before shipping, the oil in the engine will be released and repackaged to avoid leaking. We also package the engines with five-layer anti-earthquake carton boxes to ensure the items arrive in perfect condition.

    Related Parts

    To ensure smooth operation, we recommend customers replacing following parts together with the old engine: Carburetor, Battery, CDI, Voltage Regulator, Ignition Coil, Starter Relay, Air Filter, Gas Tank, Main Wire Harness Assembly, Switch Assembly, Throttle Cable, etc.

    Please see below for links to some compatible parts. For more parts, please click here.

    The appearance of the actual product may be different from the one in pictures, but it won't affect the nomal function, please subject to the our available products

    Shipping Info

    Please be advised that at this time we do not ship internationally including the following states: Hawaii, Alaska and Puerto Rico. We apologize for the inconvenience.

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