As the core component of the electronic fuel injection system, Yamaha’s specialized fuel injectors for old-school 100cc to 500cc models deliver efficient fuel atomization and precise injection control through sophisticated design and multiple hole configurations, revitalizing classic models with robust power and fuel economy.
Core Technology: The “Precision Heart” of EFI Systems
Fuel injectors control the needle valve opening via electromagnetic coils, delivering precise fuel injection with millisecond response based on ECU commands. Key advantages include:
- Atomization Technology: Multi-hole injection design breaks fuel into micron-level droplets, enhancing air mixing efficiency by 30%+ for more complete combustion;
- Dynamic Adaptation: Real-time matching of engine speed, load, and other conditions ensures smooth idling, responsive acceleration, and high-speed performance.
Diverse Hole Configurations: Tailored Performance Solutions
Offering 6/8/10/12/14-hole configurations to meet different displacement and riding needs, precisely adapted for Yamaha old-school models (e.g., BWS, YBR, Fazer series):
· 6-Hole Fuel Injector
Balanced injection coverage with outstanding fuel economy and stable injection pressure. Specifically designed for 100cc-150cc urban commuters, prioritizing daily fuel efficiency and low-speed smoothness for frequent stop-and-go city riding.
· 8-Hole Fuel Injector
Finely atomized particles enhance mid-low speed power response by 15%. Suited for 200cc-300cc street/cruiser models, balancing urban agility with short-distance touring performance.
· 10-Hole Fuel Injector
20% expanded injection surface significantly optimizes combustion efficiency. Ideal for 300cc-400cc sport models, delivering stronger acceleration 爆发力 and mid-high speed cruising stability.
· 12-Hole Fuel Injector
Ultra-fine atomization design achieves linear power improvement while reducing fuel consumption by 8%. Developed for 400cc-500cc mid-large displacement models, adapting to high-speed cruising and complex road conditions with balanced performance and economy.
· 14-Hole Fuel Injector
Extreme atomization precision maximizes combustion efficiency and reduces emissions, suitable for track-level tuning of 500cc performance models. Requiring higher fuel quality and engine calibration, it’s the top choice for performance enthusiasts.
Product Advantages: Tailored for Old-School Models
- OEM-Level Adaptation: Developed strictly according to Yamaha old-school EFI system parameters, no ECU reprogramming needed—direct replacement for original components;
- Military-Grade Materials: 316L stainless steel + high-strength aluminum construction resists fuel corrosion and high-temperature conditions, extending service life by 50%;
- Precision Manufacturing: Each hole undergoes laser drilling and electrochemical polishing with ≤0.01mm diameter error, ensuring injection volume deviation <1%;
- Full-Procedure QC: Passes fuel flow testing, sealing detection, and pulse life testing (over 1 million cycles without failure) for reliable quality.
Selection Guide: How to Match Your Model
- Initial screening by displacement: 6-8 holes for 100cc-250cc, 10-14 holes recommended for 300cc-500cc;
- Combine riding scenarios: Choose 6-8 holes for urban commuting, 10-12 holes for sport riding, and 14 holes for performance enthusiasts;
- Mind fuel quality: 12-14 hole injectors require National VI standard fuel to avoid clogging.
Wake up the surging potential of classic models with precision technology, Yamaha’s special injectors for old models make every ride have both power explosion and fuel economy, injecting high-efficiency core “heart” for old bikes. For more detailed models and customized solutions, please click to consult or leave a message, the professional team will provide you with accurate fitment suggestions.