Best 125Cc Two Stroke Engine in 2022 [*Top Picks*]

Looking for the best 125cc two stroke engine on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

5339 Reviews Scanned

  • 4-Stroke 125CC Semi-auto Engine Motor Electrical Start Motor w/Reverse for ATV Go Kart (Type 2)
    Bestseller #1
    4-Stroke 125CC Semi-auto Engine Motor Electrical Start Motor w/Reverse for ATV Go Kart (Type 2) (63)
      ★【Power】: Max Power: 6.5 kW/7500r/min±375r/min, Max Torque: 8.0 Nm/5000r/min±250r/min;Idle Speed: 1500r/min, Min Fuel Consumption: ≤370g/kw.h, Ignition System: CDI. ★【Type】: Single cylinder, 4-stroke with air-cooled, and clutch operated by hand. ★【Gear Ratio】: Gear Ratio:2.833/1.706/1.238/0.958, Compression Ratio: 9.0:1, Primary Reduction;Ratio: 3.722, Carburetor Type:PZ16J,Transmission:4-speed, Manual clutch, 4 Up; Start Mode: Kick-starter. ★【High performance】: A high performance engine, perfect for those comfortable with faster engines and have a desire to get up and go; Wide range of applications, can be applied for bicycles, models, skateboards and so on. Excellent quality, great bike engine motor accessories. ★【Fits】: HOMDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50.
  • YOFMOO 35mm Air Filter Cleaner 45 Degree Angled Compatible for 50cc - 90cc 110cc 125cc 2-stroke 4-stroke Engine Motorcycle ATV Quad Scooter Gokart Moped Pit Dirt Pocket Mini Bike 34/36mm Baja DR50
    Bestseller #1
    YOFMOO 35mm Air Filter Cleaner 45 Degree Angled Compatible for 50cc - 90cc 110cc 125cc 2-stroke 4-stroke Engine Motorcycle ATV Quad Scooter Gokart Moped Pit Dirt Pocket Mini Bike 34/36mm Baja DR50 (139)
      Brand new aftermarket performance air filter, 45 degree bend, universal fits for most motorcycle air filter with 34mm / 35mm / 36mm engine inlet. For most Off-road motorcycle, atv, quad, scooter, go kart, moped, chopper, pit bike, dirt bike, racing bike, mini bike and other bike. Fits small to medium mid-sized engines 50cc - 90cc, 110cc, 125cc 2-strokes or 4-strokes engines. Compatible for Baja DR50 49cc 50cc X18 X19 SSR Mini Pocket Bike, for TaoTao ATA-110D ATA110B ATA-110-F ATA-110-L1ATV Four Wheelers. For Kazuma Meerkat 50, Kazuma Falcon 90, Redcat 110, Honda CB CL Yamaha DT RD. Compatible for PZ19 carburetor and Honda CRF50 or XR50, 70, 90(using big bored carb) and most pit bikes, depends upon individual case. Fit almost all of the bike brands from China, such as TaoTao, Buyang, Coolsport, Jonway, Znen, NST, BMX, Kazuma, Sunl, Roketa, AIM-EX etc. Features: 1. Made of high quality materials, the air filter is durable in use for a long time. 2. Comes with clamp for easy use and adjusting. 3. The air filter prevents abrasive particulate matter from entering the engine's cylinders to ultimately increase horsepower, torque and improve the gas mileage.
  • 125CC 4-Stroke Horizontal Engine Semi-auto Single Cylinder Air-Cooling Motor w/Reverse Electric Starter for ATV Go Kart
    Bestseller #1
    125CC 4-Stroke Horizontal Engine Semi-auto Single Cylinder Air-Cooling Motor w/Reverse Electric Starter for ATV Go Kart (16)
      Engine Type: 125CC engine, single cylinder. Horizontal, 4-stroke, air-cooled. Gear system : 3 forward; neutral; reverse. Made of high quality material, durable to use, stable performance. Fitment (For the reference): Go kart, Quad, Dirt bike, ATV, Pit bike, Dirt bike, Buggy, Pocket rocket. Package includes 1set of 125cc Motor with wires+carby+air filter+chain case+gaskets as showed in the picture.
  • JCMOTO 125cc Engine 4 Stroke Motor Semi-Auto 3 Forward 1 Reverse Gear for ATV 4 Wheelers Tricycle
    Bestseller #1
    JCMOTO 125cc Engine 4 Stroke Motor Semi-Auto 3 Forward 1 Reverse Gear for ATV 4 Wheelers Tricycle (99)
      This 125cc Semi-Auto Engine has reverse gear suitable for ATV UTV 4 Wheelers Speed complete racing engine, 3 forward 1 reverse gear Upgrade your stock 50cc to this 125cc monster, you can feel the power difference immediately See below description for more specifications and wiring
  • X-PRO 125cc 4 stroke Engine Manual Transmission, Electric Start 125cc motorcycle
    Bestseller #1
    X-PRO 125cc 4 stroke Engine Manual Transmission, Electric Start 125cc motorcycle (608)
      125cc 4-stroke Engine Motor. Fit Boom 125cc Motorcycles. When purchasing this engine, please pay special attention to whether the plug-in is compatible with your bike. If it not, you need to purchase an additional plug-in for modification.
  • DuroMax XP7HPE 212cc 7HP Electric Start Gas Powered, 50 State Approved, Multi-Use Engine , Blue
    Bestseller #1
    DuroMax XP7HPE 212cc 7HP Electric Start Gas Powered, 50 State Approved, Multi-Use Engine , Blue (386)
      208cc 4 Stroke OHV Engine Large 1 Gallon Fuel Tank Runs on Standard 87 Octane Gasoline Electric Start Key Switch Box Shaft Size: 3/4" Diameter, 2-3/8" Long, 3/16" Keyway Shaft End: 5/16" Size 24 UNF - Drilled and Tapped EPA and CARB Approved for Safe Mandated Use
  • X-PRO 125cc 4-stroke ATV Gokart Engine with Automatic Transmission with Reverse, Electric Start
    Bestseller #1
    X-PRO 125cc 4-stroke ATV Gokart Engine with Automatic Transmission with Reverse, Electric Start (608)
      Engine Type: Single Cylinder, 4-Stroke, 2-Valve Gears: Automatic with reverse engine. Automatic Transmission w/Reverse, electric start for 50cc 90cc 110cc 125cc Go Kart ATV This engine assembly comes with Intake Pipe, Drive Sprocket, Sprocket cover & Spark Plug, but doesn't come with Carburetor, Battery, CDI, Voltage Regulator, Ignition Coil etc. Best of all, it comes with High quality aluminum cylinder head and iron cylinder body. When purchasing this engine, please pay special attention to whether the plug-in is compatible with your bike. If it not, you need to purchase an additional plug-in for modification.
  • Ambienceo 150cc Engine 4-Stroke GY6 Single Cylinder Moped Motor Air Cooled Complete Engine Set Short Case with CVT Transmission Kick Start Lever for Two-wheeled Scooter
    Bestseller #1
    Ambienceo 150cc Engine 4-Stroke GY6 Single Cylinder Moped Motor Air Cooled Complete Engine Set Short Case with CVT Transmission Kick Start Lever for Two-wheeled Scooter (88)
      Fitment: Our this 4-Stroke Motor Short Case Engine only compatible with 150cc engine size two-wheeled scooters(Not suitable for go kart). This 150cc motor only suitable for 10" tire.Widely used in all kinds of two-wheeled scooter;without reverse gear, continuously variable Transmission 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 This complete engine set includes carburetor, CDI, starter solenoid, coil,kick start lever. This 150cc motor without reverse gear, long axle, short box, it can be installed on the ATV, but you need to install an additional reverse gear
  • Engine Motor 4 Stroke 125CC Manual Clutch 1-N-2-3-4 Engine Motor Pit Dirt Bike ATV Single Cylinder with Air-Cooled 4-Speed Manual Clutch 1-N-2-3-4 for CRF50 XR50 Z50
    Bestseller #1
    Engine Motor 4 Stroke 125CC Manual Clutch 1-N-2-3-4 Engine Motor Pit Dirt Bike ATV Single Cylinder with Air-Cooled 4-Speed Manual Clutch 1-N-2-3-4 for CRF50 XR50 Z50 (21)
      【Main Parameters】 Maximum torque: 8.0 Nm/5000r/min±250r/min, idle speed: 1500r/min±100r/min, fuel consumption: ≤367g/kw.h, aperture * stroke: 52.4mm*55.5mm, lubricating oil capacity : 900ml, compression ratio: 9.0:1, primary reduction ratio: 3.722, clutch: wet multi-disc, maximum power: 6.5 kW/7500r/min±375r/min, gear ratio: 2.833/1.706/1.238/0.958, rated power: 5.6 kW/7500r/min±375r/min 【Specifications】Cylinder diameter×stroke: 52.4×55.5mm, displacement: 119.7 ml, rated power: 5.6 kW/7500r/min±375r/min, spark plug: A7TC, gearbox: 4-speed, manual clutch,1-N-2-3-4, carburetor model: PZ16J, lubricating oil: SAE15W/40-SE, four-stroke gasoline engine oil 【Fit】 (for reference) suitable for HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K2 / ST SL 90 / ZB 50 【Package Includes】 1x 125CC engine, 1x starter lever, 1x gear lever, 1x carburetor, 1x intake manifold, 1x CDI, 2x intake gasket 【After-Sales Service】 American stock, short delivery time, if you encounter any problems during the purchase process, please feel free to contact us, our professional after-sales staff will be at your service at any time
  • Quicksilver Premium Plus TC-W3 2-Stroke Synthetic Blend Marine Engine Oil – Outboards, PWC - 1 Gallon
    Bestseller #1
    Quicksilver Premium Plus TC-W3 2-Stroke Synthetic Blend Marine Engine Oil – Outboards, PWC - 1 Gallon (386)
      Advanced Quicksilver formulation provides superior lubrication to maintain peak performance for all 2-cycle outboards, PWC’s and small engines
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