DYNOJET Jet Kit - Yamaha XVZ1300 4148

Carburetor tuning is critical for unlocking your XVZ1300's true potential, especially when you've modified your engine, air intake, or exhaust system. The DYNOJET Jet Kit gives you precise, fully adjustable control over fuel delivery across the RPM range—eliminating the guesswork of stock jetting and restoring both power and rideability. Whether you're running stock components or a heavily modified setup, this kit has a stage matched to your specific build.

DYNOJET's modular stage system lets you dial in exactly the fuel curve you need. Start with Stage 1 for mild modifications and see a reliable 5% power bump with stock filters and pipes. Move to Stage 2 for 8% gains with individual air filters and performance exhausts. Advanced builders can push to Stage 3 for 10–15% power increases, though be prepared for potential low-rpm driveability trade-offs on some motors. For dedicated race engines running high RPM and top-fuel setups, Stage 7 delivers maximum performance—street use not recommended.

• Fully adjustable needles
• Seven performance stages
• MPN: 4148
• Yamaha XVZ1300 specific
• Stage 1: 5% power gain
• Stage 2: 8% power gain
• Stage 3: 10–15% power gain
• Stage 7: Race-only tuning
• Restores driveability
• Bolt-on installation
• Works stock/modified engines