Rotax Utility+

Rotax Utility+ is the official mobile technical toolkit for Rotax karting. Designed for workshop, trackside and race-day use, the app brings Smart Jetting, Rotax E10 diagnostics and E10 scrutineering workflows together in one simple, efficient solution.

Whether you are a driver, dealer, service center, scrutineer, race official or track operator, Rotax Utility+ helps you stay informed, make confident decisions and keep your focus where it belongs: on the track.

SMART JETTING FOR ROTAX MAX ENGINES

Stop guessing your carburetion setup. Smart Jetting calculates trusted main jet recommendations for Rotax MAX combustion engines based on current ambient conditions such as temperature and air pressure.

• Use automatic weather input via your phone’s location or enter ambient parameters manually

• Save jetting calculations together with weather data and personal notes

• Build a reliable setup history to compare sessions and spot trends over time

ROTAX E10 DIAGNOSTICS & ANALYTICS

Turn your smartphone into a practical diagnostic dashboard for the Rotax E10 electric kart powertrain. Get a clear overview of key system information and track-relevant data directly in the paddock.

• View general system information and current performance maps

• Monitor Drive Unit status

• Check battery State of Charge (SoC) and State of Health (SoH)

• Read critical error codes and access actionable solution steps

E10 SCRUTINEERING TOOLKIT

Rotax Utility+ supports fast, precise and convenient technical inspections for professional race operations. The scrutineering feature is built to help officials verify compliance with confidence.

• Read engine seal numbers, serial numbers and defined racing parameters

• Receive alerts if irregularities are detected

• Support paperless pre-race and post-race checks

• Streamline official workflows using the required adapter cable and compatible dongle

SIMPLE CONNECTION, CLEAR RESULTS

Advanced E10 insights are easy to access with the right hardware.

• Quick connection via Bluetooth

• Easy-to-understand visual layouts

• Clear, structured results you can trust

Required hardware for E10 features:

• Official Rotax diagnosis connector to OBD2 adapter cable, available through your local Rotax dealer

• Compatible third-party OBD2 Bluetooth dongle

Rotax Utility+ is a read-only solution. It allows users to view, verify and document information without flashing, programming or modifying any systems. It does not replace BUDS.

The integrated Rotax Jetting functionality brings trusted jetting recommendations, diagnostics and scrutineering together in one mobile app for iOS and Android.

Rotax Utility+. Diagnosis and jetting. Mobile, simple, efficient.