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quality Yamaha BS25A Carburetor (Euro 3 Version) for 125cc-150cc 4-Stroke Motorcycle Engines factory
quality Yamaha BS25A Carburetor (Euro 3 Version) for 125cc-150cc 4-Stroke Motorcycle Engines factory

Yamaha BS25A Carburetor (Euro 3 Version) for 125cc-150cc 4-Stroke Motorcycle Engines

Product Summary
Product Overview The Yamaha BS25A Euro 3 Carburetor is an OEM-spec replacement carburetor designed for Yamaha and compatible 125cc–150cc 4-stroke motorcycles. Built to meet Euro 3 emission standards, this carburetor delivers precise fuel-air mixing, improving throttle response, idle stability, and ...

Product Details

Mountingstyle: Clamp Mount
Rubber Sleeve Material: Oil-resistant Nitrile Rubber
Choketype: Manual Choke
Condition: New
Jetsize: Standard 100 Main Jet
Color: As Shown
Caliber Of Bore: 30mm (125-250cc)
Throttletype: Cable Operated
Size: Standard
Market: ALL OF WORLD
Material: Aluminum Alloy
Form Of Packaging: Color Bag + Color Box/carton
Dimensions: 66×78×110mm
Application: STANDARD CRANKSHAFT
Compatibility: Universal Fit For Most Motorcycles
Product Description

Product Overview


The Yamaha BS25A Euro 3 Carburetor is an OEM-spec replacement carburetor designed for Yamaha and compatible 125cc–150cc 4-stroke motorcycles. Built to meet Euro 3 emission standards, this carburetor delivers precise fuel-air mixing, improving throttle response, idle stability, and fuel efficiency while ensuring compliance with stricter environmental regulations.

Constructed with durable die-cast aluminum alloy and corrosion-resistant components, it is engineered for long-lasting performance in daily commuting and general use. Factory-calibrated for direct bolt-on installation, it fits most compatible Yamaha engines without modifications, making it ideal for repairs, restorations, and bulk wholesale orders.

Key Features


  • BS25A specification with 25mm venturi optimized for 125–150cc engines
  • Euro 3 compliant design for reliable emissions control
  • OEM-style construction for perfect fit on Yamaha motorcycles
  • Durable die-cast aluminum body for long service life
  • Pre-calibrated for direct bolt-on installation (no modifications needed)
  • Improves engine idle stability, throttle response, and fuel efficiency

    Specification Details
    Model Number Yamaha BS25A (Euro 3 Version)
    Product Type Emission-Compliant OEM Carburetor
    Venturi Inner Diameter 25mm
    Control System Electronic/Automatic Choke
    Material Die-Cast Aluminum Alloy + High-Quality Rubber/Plastic Components
    Compatible Engines 4-Stroke Single Cylinder 125cc–150cc (Yamaha and compatible models)
    Compatible Vehicles Yamaha 125cc–150cc 4-Stroke Street Motorcycles (Euro 3 Spec)
    Fuel Type Unleaded Gasoline (91+ Octane Recommended)
    Installation Type Direct Bolt-On Replacement (OEM-Compatible, No Modifications Needed)
    Net Weight ~0.49 kg (1.08 lbs)
    Package Contents 1 × Yamaha BS25A Euro 3 Carburetor + Hoses
    Warranty 12 Months Limited Warranty (Covers Manufacturing Defects)

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