Zonsen(Zongshen) 250cc OHC Air Cooled Engine For Atomik Thumpstar Dirt Bike Motorbike

Description: 

• Genuine Zonsen(Zongshen) 250CC vertical engine with kick/electric start
• It is a direct bolt on replacement for most Chinese dirt bikes running 200-250cc single cylinder air cooled motors such as Thumpstar, Atomik, DHZ, Foxico, XTM, etc

Specifications:

• Type: 1-cylinder, vertical, 4-stroke, air-cooled kick start and electric start - OVER HEAD CAM
• Bore x Stroke: 65mm x 67mm
• Displacement: 229ml
• Max. Power & Corresponding Speed: 11.5KW/7500rpm
• Max. Torque & Corresponding Speed: 17.5N.m/5000rpm
• Min. Fuel Consumption: <367g w.h="" pollutant="" index:="5.5" g/km="" (co),="1.2g/km" (hc)="">
• Clutch Type: Manual wet clutch
• Start Mode: kick start and electric start
• Compression: 9.0:10 
• Engine Oil: 900ml, 15W/40-SE, 4 stroke
• Oil GEARS: 5 SPEED MANUAL CLUTCH, 1 down 4 up
• SPROCKET: 15T 428 CHAIN
• Dimension: 458 x 358 x 324mm
  

• Weight: 35kg

Listing includes: 

• 1 x ZONGSHEN 250CC VERTICAL ENGINE
• 1 x Kick Starter Lever
• 1 x Gear Shift Lever
• 1 x Manifold set Package
• Wiring loom harness (option only)
• Kill switch (option only)
• Key switch/ 2keys (option only)
• NGK spark plug (option only)
• CDI (option only)
• Coil with lead (option only)
• Rectifier (option only)
• Solenoid (option only)
• JK PZ30 carby (outlet diameter: 30mm, bolt eye-eye: 48mm, bolt diameter: 6.5mm) (option only)
• air filter 42mm (may vary depending on stock availability)(option only)

Important note:

• Zongshen has rebranded to Zonsen — it's the same company under a new name. The engine you will receive may bear the marking or logo of either ZONGSHEN or ZONSEN, or it may not have any logo at all.