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  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
  • 49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike
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49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike

  • 1 - 19 Pieces
    $49
  • 20 - 49 Pieces
    $48
  • 50 - 79 Pieces
    $45
  • >= 80 Pieces
    $42

Customization:

Customized packaging(Min.Order: 500 pieces)
Customized logo(Min.Order: 10000 pieces)
Graphic customization(Min.Order: 10000 pieces)

49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Performance Power Source: A 49cc air-cooled 2-stroke engine designed to deliver reliable power for mini ATVs, quad dirt bikes, and pit bikes. The pull-start mechanism ensures easy ignition, while the integrated transmission optimizes torque and speed for varied terrain.
  • Compact Engine Design: Lightweight aluminum engine block and cast iron cylinder head combine durability with portability, enabling efficient operation in small vehicles.

Key features

  • 1. Lightweight Aluminum Construction for Enhanced Portability

  • With an aluminum engine block, you can achieve a lightweight design that is up to 20% lighter than traditional cast iron engines*, enabling easier handling and transport. The aluminum’s strength-to-weight ratio ensures durability without sacrificing mobility for small vehicles like pit bikes or go-karts.

  • 2. Electronic Ignition System for Reliable Performance

  • With an electronic ignition system, you can ensure reliable starting and consistent performance*, offering smoother operation compared to mechanical ignition systems*. This design reduces maintenance needs and improves ignition efficiency in varying conditions.

  • 3. High-Output 49cc 2-Stroke Engine for Power and Efficiency

  • With a 49cc 2-stroke engine, you can achieve faster acceleration and higher power output*, outperforming similarly sized 4-stroke engines in burst performance*. The air-cooled system and vertical finned heat exchanger maintain optimal operating temperatures for sustained power delivery.

  • 4. Compact Design for Versatile Small-Vehicle Applications

  • With a compact design, you can easily install it in small vehicles like pit bikes or mini ATVs*, saving space while maintaining robust power delivery*. The modular construction allows seamless integration into tight spaces without compromising performance.

  • 5. Safety-Compliant Materials for Reliable Operation

  • With safety-compliant materials like cast iron cylinder heads and integrated cooling systems, you can meet industry safety standards for recreational vehicles*, ensuring reliable and secure operation. The spark plug and heat-resistant components minimize risks in high-temperature environments.

Product details

49cc Engine 2-Stroke Pull Start With Transmission for Mini Motor ATV Quad Dirt Pit Bike

The 49cc 2-Stroke Pull Start Engine with Transmission is a lightweight, high-performance power solution designed for mini ATVs, quad bikes, and dirt pit bikes. Built with an aluminum engine block and cast iron cylinder head, it combines durability with compact design. Its air-cooled system and vertical finned heat exchanger ensure efficient cooling, while the modular structure simplifies maintenance and customization.

Technical specifications

FeatureSpecificationBenefit
Engine TypeAir-cooled 2-strokeEfficient cooling for sustained use
MaterialAluminum engine block, cast iron headLightweight yet robust construction
Cooling SystemVertical finned heat exchanger20% faster heat dissipation vs. flat designs
IgnitionElectronic spark plugReliable ignition in varied conditions
TransmissionIntegrated with engine blockSpace-saving design for compact vehicles
Displacement49ccBalanced power-to-weight ratio

Customization guide

Adjustable carburetor settings to fine-tune fuel-air ratios for optimal performance in different terrains. Modular components allow easy replacement of parts like the exhaust system for noise reduction or efficiency upgrades.

Get inspired

Whether you’re building a mini off-road vehicle or a pit bike, this engine’s compact size and versatile design make it ideal for custom projects. With its durable materials and easy maintenance, it’s perfect for both recreational use and light-duty applications.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Power Output (HP)3.5 HP+15% (4.0 HP)+30% (4.5 HP)*
Weight8.2 kg20% lighter (6.6 kg)25% lighter (6.2 kg)
Cooling EfficiencyStandard finsEnhanced fin densityDual-channel airflow
Durability Rating500 hours800 hours1,200 hours

Supplier's note

  1. Technical Breakthroughs:

    • Aluminum Engine Block: Reduces weight by 30% compared to cast iron, enhancing vehicle agility.
    • Vertical Fins: Achieve 20% faster heat dissipation, enabling continuous operation in high-temperature environments.
    • Modular Design: Allows 50% faster maintenance vs. monolithic engines, lowering downtime.
  2. Optimal Version Selection:

    • Base Model: Ideal for casual riders or budget projects requiring basic reliability.
    • Advanced Model: Targets enthusiasts seeking a 15% power boost and lighter weight for agile handling in rough terrains.
    • Pro Model: Designed for professional users needing extreme durability (1,200-hour rating) and peak performance, such as racing or commercial pit bikes. With its dual-channel cooling, the Pro version maintains optimal temperatures even during prolonged high-speed use.

Frequently asked questions

  • Which 49cc 2-stroke engine is best for mini pit bikes or ATVs?

  • How do I maintain the spark plug on a 49cc air-cooled engine?

  • What materials are used in the engine block and cylinder head?

  • Can I customize the transmission for my mini bike?

  • Is the 49cc engine EPA-certified for emissions?

  • What oil-to-fuel ratio should I use for a 2-stroke engine?

  • Does the engine’s air-cooled system prevent overheating during off-road use?

  • Why choose a 2-stroke engine over a 4-stroke for mini vehicles?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Engine TypeMini ATVs, Pit Bikes, Go-Karts2-stroke (Simpler design, lower maintenance) ▲
Industry: 4-stroke (better emissions)
Our Base: Lightweight, cost-effective
Our Advanced: 2-stroke with catalytic converter (reduced emissions)
Industry Standard: Higher fuel efficiency, lower emissions
Our Base: Higher emissions, less fuel-efficient
Cooling SystemOff-road, High-heat environmentsAir-cooled (Vertical finned heat exchanger) ▲
Industry: Liquid-cooled (better thermal management)
Our Base: Lightweight, no coolant maintenance
Our Advanced: Enhanced fin design (30% faster heat dissipation)
Industry Standard: Consistent cooling but adds weight
Our Base: Risk of overheating in extreme conditions
DisplacementEntry-level recreational vehicles49cc (Optimized for power-to-weight ratio) ▲
Industry: 50cc (standard for mini engines)
Our Base: Compact size, fuel-efficient
Our Advanced: 50cc (10% higher torque)
Industry Standard: Slightly higher power output
Our Base: Limited top speed for heavy-duty tasks
Ignition SystemHigh-altitude or cold-start scenariosElectronic ignition (Reliable spark generation) ▲
Industry: Manual choke (older designs)
Our Base: Easy startup in all conditions
Our Advanced: Smart ignition (auto-adjusts for fuel efficiency)
Industry Standard: Manual adjustments required
Our Base: Less customizable for extreme conditions
Material ConstructionHeavy-duty off-road useAluminum block + cast iron head (2.1kg lighter than steel) ▲
Industry: Steel (durable but heavier)
Our Base: Lightweight for agility
Our Advanced: Aluminum+composite (30% corrosion resistance)
Industry Standard: Higher durability but heavier
Our Base: Risk of wear in abrasive environments
TransmissionFrequent gear shifts (e.g., trail riding)Belt-driven transmission (Quiet operation: 43 dBA ▲)
Industry: Chain-driven (louder, higher maintenance)
Our Base: Low maintenance, smooth operation
Our Advanced: Variable-speed belt (20% torque improvement)
Industry Standard: Higher noise (55 dBA)
Our Base: Limited gear options for steep terrain

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