labwork 125cc 3-Speed Semi-Automatic Engine Motor with Reverse and Electric Start for Go-Kart ATV

Product Description

This brand-new 125cc 4-stroke engine assembly features a semi-automatic transmission with three forward gears, neutral, and reverse. It includes electric start, air cooling, a wet multi-plate clutch, starter motor, and stator. It is designed for selected China-made ATVs and go-karts.

Compatibility

• Coolster
• TaoTao
• Roketa
• Kazuma
• Terminator
• Lynx
• Redcat
• Tank
• Most China-made 125cc ATVs and go-karts

This engine has 3 forward gears, neutral, and 1 reverse gear. It is not compatible with vehicles designed for a 1-forward/1-reverse transmission.

Specifications

• Type: Single-Cylinder 4-Stroke Engine
• Displacement: 125cc
• Cooling System: Air-Cooled
• Transmission: Semi-Automatic
• Gear Pattern: 3 Forward, Neutral, Reverse
• Starter: Electric Start
• Clutch: Automatic Multi-Plate Wet Clutch
• Ignition: CDI
• Fuel System: Carburetor
• Carburetor Model: PZ22
• Carburetor Type: Plunger Type
• Bore × Stroke: 54 mm × 49.5 mm
• Compression Ratio: 9.0:1
• Maximum Torque: 8.0 N·m at 5,000-6,000 RPM
• Rated Power: 7.64 HP / 5.7 kW at 7,000-8,000 RPM
• Spark Plug: A7TC
• Fuel Requirement: 87 Octane or Higher
• Lubrication: Pressure / Splash
• Recommended Oil: SF15W/40-SE
• Oil Capacity: Approximately 900 ml
• Fitment Type: Replacement Engine Assembly

Features

• Brand-new aftermarket 125cc engine
• 4-stroke, single-cylinder, 2-valve design
• Semi-automatic 3-forward/1-reverse transmission
• Electric starter for convenient operation
• Air-cooled system helps maintain operating temperature
• Automatic wet clutch supports smooth power transfer
• CDI ignition system for reliable starting
• Suitable for selected China-made ATVs and go-karts
• Professional installation is recommended

Wiring Reference

• Yellow wires: Lighting
• Red/black wire: Ignition
• Blue/white wire: Trigger
• Green wire: Ground

Package Includes

• 1 × 125cc Engine Assembly
• 1 × Starter Motor
• 1 × Stator
• 1 × Intake Manifold Pipe
• 1 × Spark Plug
• W/o Installation Instructions

Not Included

• Carburetor
• Battery
• CDI
• Voltage Regulator
• Ignition Coil

Important Note

Add the correct 4-stroke engine oil before starting or operating the engine. Running the engine without oil may cause severe damage or failure. Please verify the engine mounting points, transmission type, wiring connectors, sprocket size, gear pattern, and vehicle compatibility before ordering. This engine is not compatible with 1-forward/1-reverse transmissions. Professional installation is recommended.