Agree, we just put together a couple new EVO Jr. complete engine packages and took the carbs apart to see what they came with. Needle is different, floats are now 4.0 gr and came jetted at 130 which we are guessing may actually be a tad rich.
All in all, really impressed with the changes and upgrades that Rotax has provided. The only thing that didn’t give us a ” warm and fuzzy” was the new pipe mount. We actually drilled another hole and added a spring to get it to sit and secure properly. If anyone has the answer to getting the pipe to sit properly with the springs included, please upload a picture to the forum, I am sure others will appreciate it. Thanks, and feel free to reach out to us if you have any questions or need assistance. george V. @ ApexKartSports