kyajet Pro

kyajet Pro helps you approach 2-stroke Keihin® PWK carburetor tuning in a structured and understandable way.

Instead of judging every change by feel alone, you can compare setups, analyze jets and needles, and include environmental conditions in your tuning process. kyajet Pro lets you compare reference and test setups and see how changes affect different throttle ranges.

Key features:
- Compare reference and test setups
- Compare pilot and main jets
- Analyze needle codes and needle geometry
- Evaluate changes across low, mid and high throttle ranges
- Visualize setup differences
- Use the assistant to determine the next test direction
- Include air density and environmental conditions
- Save, manage, import and share setups

kyajet Pro is not designed to tell you that there is only one correct setup. It helps you evaluate changes more systematically, understand relationships more clearly and prepare your next test with better information.

Built for riders, mechanics and tuners who prefer structured comparisons over “that should probably work.”

Note:
kyajet Pro does not replace proper engine inspection or professional tuning. Carburetor and engine adjustments should always take engine temperature, plug reading, fuel, operating conditions and manufacturer specifications into account.