Motorcycle 50cc Engine with Start Lever For KTM 50 SX 2 Stroke Air-Cooled Motor 47cc 49cc Motocross Dirt Pit Bike Modified

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Engine Specs

Engine type: Single-cylinder, two stroke

Max. Power: 9.HP/11000rpm

Net weight: 8.5kg

Cooling: air cooling

Max. Torque: 6.39N. M/10,000rpm

Bore x stroke: 39.5 x 40mm

Displacement: 49.6cc

Measure: 240 x 230 x 150mm

Start: Kick start

Gasoline and the oil mixing ratio: 32: 1

Product Description

Complete 50cc 2-stroke air-cooled engine assembly, perfect replacement or upgrade for KTM 50 SX and other 47cc/49cc/50cc dirt pit bikes! This ready-to-install engine delivers reliable power, easy kick-start operation, and durable performance for youth motocross, mini bikes, and off-road riding.

🔧 Fitment:

Direct replacement for KTM 50 SX models

Universal fit for most 47cc, 49cc, 50cc 2-stroke dirt bikes, pit bikes, mini motocross bikes, and ATVs

Air-cooled, 2-stroke design, compatible with standard 50cc engine mounts

Comes with kick start lever, ignition coil, spark plug, and all necessary components as shown

💪 Premium Material & Craftsmanship:

High-strength aluminum alloy cylinder with precision machining, excellent heat dissipation for long-lasting performance

Rugged crankcase and gearbox built to withstand the rigors of off-road riding and youth motocross

Pre-assembled and tested, ready for installation with minimal setup

Reliable kick-start system for easy, consistent starting every time

Air-cooled design for simple maintenance, no complex water cooling system required

🚀 Key Benefits:

Complete Power Unit: All-in-one engine assembly, no need to source individual parts

Direct Replacement: Bolt-on fit for KTM 50 SX, easy to install for repairs or upgrades

Reliable Performance: Smooth 2-stroke power delivery, perfect for youth riders and beginner motocross

Durable Construction: Built to last through off-road use, jumps, and rough terrain

Versatile Compatibility: Fits most 50cc pit bikes, mini bikes, and small ATVs for custom builds

📦 Package Includes:

1 x Complete 50cc 2-Stroke Air-Cooled Engine (with kick start lever)

Pre-installed ignition system, spark plug, and all components as pictured

No installation instructions included, professional installation is highly recommended

⚠️ Important Notes:

Please confirm your motorcycle model, engine size, and mounting compatibility before purchasing.

This is a high-performance racing/modified engine, designed for off-road use only. Not street legal in all regions.

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High-concerned chemical: none Item Weight: 8.7 semi_Choice: yes Brand Name: PowerMotor Origin: Mainland China No. of Cylinders: 1 Cylinder Material: alloy Displacement (ml): 50cc External Testing Certification: CCC Choice: yes Complete Engine: Yes