Jetting for Yamaha YZ 2T bikes

This app is helpful, I currently use the yz250 setup, but wish they would update with the YZ250X. This is why it's getting ***

Love the app, but would like to see big bore kit jetting on the app. Hope it's a update soon.

Looks nice and recommended setting seem to align with other information I've seen online for tuning older YZ250s. But only covers up to 2015 model year and limited to 10,000 ft elevation, and doesn't cover YZ250X. I ride a 2016 YZ250X, and often go over 11000 ft. The base settings the app comes up with don't match what my manual says, so I'm not comfortable using the app's recommendations for altitude adjustments.

I tried this setup and it worked great! Some may say that it doesn't work because the bike won't idle, but they don't understand that this is how bikes are race tuned - it is to help the bike slow down faster with engine braking. If you have a doubt, adjust it first and grab the throttle halfway - it will lift the front end well before it hits the powerband. I went to sand mountain (Utah - 700 ft high dune) and the bike was still grabbing more power as I was flying up the dune in 3rd gear 1/2 t

Great app to dial in mine and my kids bikes as they are different sizes. Also riding year round and at different altitudes makes rejetting a breeze. Bikes run great and are responsive like they should be and I expect.