The VHSB 34 XS EVO is designed specifically for the Rotax Max EVO engines, but can also be retrofitted to older engines with the proper jetting and setup. If you're looking for better drivability, especially in low-speed corners and throttle transitions, the EVO carb is a worthwhile upgrade. Includes 130 main jet.
- Smoother throttle response at low and mid RPM.
- More stable idle and better cold-start performance.
- Reduced bogging or hesitation during sudden throttle input.
- Better fuel atomization, especially in partial throttle.
- Improved tuning range, making it easier to dial in across different tracks and weather conditions.
- Less fouling, more consistent plug color and combustion.
