Jetting for Yamaha YZ 2T bikes
ISEnet Sports iPhoneiPadiPod touch
Jetting for Yamaha YZ 2T bikes is a paid Sports app for iPhone and iPad by ISEnet. Rated 5.0/5 from 3 ratings. Requires iOS 15.0. Updated August 24, 2026.
- Rating
- 5.0
- 3 ratings
- Price
- 3.99 USD
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Aug 24
- 2026 · v2.6
Screenshots
About Jetting for Yamaha YZ 2T bikes
This app helps you jet your 2-stroke Yamaha YZ (PW 50, PW 80, YZ 65, YZ 80, YZ 85, YZ 85 LW, YZ 125, YZ 125 X, YZ 250, YZ 250 X) and get the most out of it. From the temperature, altitude, humidity, atmospheric pressure and the oil-to-fuel ratio it works out the jetting recommended for your exact model. To get the weather values the app can use the location service and the data connection: it takes your position and altitude, queries the nearest public weather station and brings back its readings. It also works with no GPS and no data, entering the weather by hand. The app has 4 tabs: - Results: the recommended main jet, needle type and clip position, pilot jet and air screw turns for the conditions and the bike you set, plus air density and density altitude. It has fine tuning per circuit —high, mid and low— to match the character of one particular engine. - Conditions: temperature, altitude, pressure and humidity. Type them in, or pull them from the nearest weather station with one tap, without leaving the screen. - Engine: year, region, model and oil mix ratio. The carburettor is not a choice: the year, region and model determine it. Underneath sits the mix calculator: it converts between petrol, oil and ratio both ways —in litres, millilitres, US and imperial gallons and ounces— and leaves the ratio set here with one tap. - Logbook: saves each ride with the bike, the weather and what the app recommended, so you can note afterwards what you actually fitted and how it went, rated per circuit. Export it to CSV or share a copy to move it to another phone; importing never deletes anything. Units: metres and feet for altitude, ºC and ºF for temperature, mb, hPa, mmHg and inHg for pressure, and kg/m³, lb/ft³ and lb/gal for air density. No ads, no tracking and no account. Yamaha YZ models that are included: - PW50 from 1995 to 2027. - PW80 from 1995 to 2024. - YZ65 from 2018 to 2027. - YZ80 from 1995 to 2001. - YZ85 from 2002 to 2027. - YZ85LW from 2022 to 2027. - YZ125 from 1995 to 2027. - YZ125X from 2016 to 2027. - YZ250 from 1995 to 2027. - YZ250X from 2016 to 2027.
What’s new
Version 2.6 · Updated August 24, 2026
The mix calculator, and a new icon. - New mix calculator, inside the Engine tab and right under the ratio. It converts between petrol, oil and ratio in both directions: how much oil goes into the petrol you are about to mix, how much petrol the oil you have left will take, or what ratio a mix you already made came out at. - Litres, millilitres, US and imperial gallons and ounces, each field with its own unit. Changing the unit rewrites the mixture, it never changes it. - The ratio is shown both ways at once, as a percentage and as 1:n. And the percentage is oil on petrol, not on the whole mixture: at 4 %, five litres of petrol take 200 ml of oil. - Use this ratio leaves it set on the Engine tab, where it feeds the jetting calculation. If it falls outside the range the app calculates with, it tells you instead of silently clipping it. - New icon: the same bike, now flat white on Yamaha blue, with YZ on it. It reads at the size the phone actually draws it. - Help updated, with a screen of its own for the calculator, in all seven languages. This version requires iOS 15 or later.
App privacy
The developer, ISEnet, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Jetting for Yamaha YZ 2T bikes
Looking for apps like Jetting for Yamaha YZ 2T bikes? Here are 6 similar apps on the App Store. The highest rated is Dirty 100 (5.0/5), and 4 of the 6 are free to download.
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Jetting Yamaha YZ 2T Moto
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Jetting for KTM 2T Moto
4.5
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NER TIMING - LIVE RESULTS
3.7
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LITPro - GPS Lap Timer
4.6
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Dirty 100
5.0
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WiGET
2.3
| App | Rating | Price | Last updated |
|---|---|---|---|
| Jetting for Yamaha YZ 2T bikes | 5.0 / 5 (3 ratings) | 3.99 USD | August 24, 2026 |
| Jetting Yamaha YZ 2T Moto | 4.6 / 5 (16) | 5.99 USD | Jan 23, 2025 |
| Jetting for KTM 2T Moto | 4.5 / 5 (21) | 5.99 USD | Jan 28, 2025 |
| NER TIMING - LIVE RESULTS | 3.7 / 5 (3) | Free | May 28, 2026 |
| LITPro - GPS Lap Timer | 4.6 / 5 (332) | Free | Sep 23, 2026 |
| Dirty 100 | 5.0 / 5 (4) | Free | Sep 21, 2026 |
| WiGET | 2.3 / 5 (24) | Free | May 22, 2026 |