# kyajet — Carburetor setup tool

> Carburetor setup and jet/needle data tool for Keihin and similar carburetors. (iPhone/iPad app by keywerks GmbH.)

- Source: https://appshunter.io/ios/app/kyajet/id1336049862 (this page in markdown: same URL + `.md`)
- Developer: [keywerks GmbH](https://appshunter.io/developer/1336049861)
- Category: Utilities, Productivity
- Price: $7.99
- Rating: 4.50/5 from 13 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.1 · 3 MB
- Languages: American English, German (Germany), European Spanish
- Released: 2018-01-19
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kyajet/id1336049862/reviews.md

## What is kyajet?

Kyajet is the (only) tool for setting up Keihin® carburetors (and similar) and gathering additional information about jets and needles. It provides a nice and clean interface, comprehensive needle data, several comparison possibilities and much more. A perfect companion for all drivers of such carburetors!

Use it to optimize your carburetor settings while on the road. Enter your current setup data and compare them with different alternatives to let your bike perform better.

## Key features

- Carburetor setup tool
- Keihin carburetor optimization
- Jet and needle data
- Setup comparison
- Performance improvement

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/kyajet/id1336049862/reviews.md

### 5/5 — Unglaublich

*2021-05-18*

Wer hätte gedacht dass es so ein mächtiges Tool gibt, der mich endlich aus der Abstimmerrei rausholt

**Developer response:** Vielen Dank für das nette Lob!

### 5/5 — Verbesserungsvorschlag

*2018-07-28*

Die App funktioniert grundsätzlich sehr gut. Jedoch könnte die Übersicht der bis zu 8 verschiedenen Vergasersetups noch verbessert werden. Einfach die grafische Darstellung auf das obere Bildschirmdrittel beschränken und das Referenzsetup ausblenden. Damit könnte man sicherlich bis zu 4 Setups unten gleichzeitig sehen und schneller hin und her wechseln...

**Developer response:** Vielen Dank für das Feedback. Wir werden mal schauen, ob wir das so umsetzen können. Möglicherweise über das optionale Ausblenden des Referenz-Setups. So könnte man dann Platz auf dem Bildschirm gewinnen.

## Frequently asked questions about kyajet

### What is kyajet used for?

kyajet is a tool designed specifically for setting up Keihin carburetors and similar models. It provides data on jets and needles, allowing users to compare different configurations and optimize their carburetor settings for better vehicle performance.

### What kind of data does kyajet provide?

kyajet offers comprehensive data on carburetor jets and needles. This includes detailed information that helps users understand their current setup and explore alternative configurations for improved performance.

### Can kyajet help me improve my vehicle's performance?

Yes, kyajet is designed to help optimize carburetor settings. By entering your current setup data and comparing it with different alternatives within the app, you can make informed adjustments to enhance your vehicle's performance.

### What devices does kyajet support?

kyajet is available for iPhone, iPad, and iPod devices. It is designed to be a convenient companion for users on the go.

### How much does kyajet cost?

kyajet is a paid application, priced at $7.99. This one-time purchase grants you access to all its features for carburetor setup and data analysis.

### Is kyajet updated frequently?

The latest version of kyajet is 2.0.9, last updated on December 15, 2025. This indicates ongoing development and support for the application.

### What is the age rating for kyajet?

kyajet has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals who may be interested in automotive mechanics.

### Does kyajet have ads?

No, kyajet does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on its utility features.

## Version history (last 5 releases)

### 2.0.9 — 2025-12-15

Removed a few tiny bugs and introduced them to the big 26.

### 2.0.5 — 2021-10-26

We fixed some smaller bugs, compatibility and cake issues (Got it, Arthur?).

### 2.0.4 — 2021-07-25

- Some small code optimizations added

### 2.0.3 — 2021-07-21

- Some small graphics issues fixed

### 2.0.2 — 2021-06-15

- We did some summer-improvements. Less calories, more fun!

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## More apps by keywerks GmbH

- [TimingMachine](https://appshunter.io/ios/app/timingmachine/id1499524052)
- [cleanPAY Pro](https://appshunter.io/ios/app/cleanpay-pro/id1577810105)

All apps by keywerks GmbH: https://appshunter.io/developer/1336049861

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*