DYNOJET Jet Kit - Yamaha XVS650 4168

Carburetor tuning is critical for extracting maximum performance from your XVS650, and stock jetting often leaves substantial power on the table. The DYNOJET Jet Kit delivers measurable gains across the RPM range—from smooth street riding to aggressive track work—by precisely adjusting fuel delivery to match your engine's air intake and exhaust modifications. With fully adjustable stages, you can dial in the exact tune your bike needs without guessing.

Whether you're running stock components or a heavily modified engine, this kit adapts to your setup and riding demands. Stage 1 delivers modest, reliable gains for mild builds, while Stage 3 and beyond unlock serious power for dedicated performance machines. Installation is straightforward, requiring only carb removal and jet swaps—no welding or machine work necessary.

• Fits: Yamaha XVS650
• MPN: 4168
• Type: Fully adjustable jet kit
• Stage 1: 5% power increase
• Stage 2: 8% power increase
• Stage 3: 10-15% power increase
• Stage 7: Race-only configuration
• Installation: Bolt-on, carb removal required
• Adjustable: Multiple stages available
• Material: Precision-engineered jets
• Improves: Power and drivability
• Note: Stage 3+ may compromise street drivability