ROTAX MAX JETTING GUIDE APP. Just in time for the Rotax MAX Challenge Grand Finals 2016, we are happy to announce the release of the brand new Rotax MAX Jetting Guide App! Specifically designed for the Rotax 125 MAX evo Engine, the App provides you with the perfect main jet set up in any ambient. Description; Find a Builder; Reviews. 5mm NT Carburetor Jet Kit. 5mm thread for use on stock NT 2 stroke carburetor to dial in proper fuel air mix. You will need to learn to read your spark plug and learn a bit about tuning prior to changing jets, but it's not too difficult, and changing the jet itself is straight forward. Just drain the. What is the most effective jetting software and are they any better than using guesswork. My experience with the Jet-Tech software. By Alan Rees-Reynolds. That by the time you reach the end of my article but I will say that I have tested the others so I do have knowledge of them, I just haven't included them in the review.

You'll need some electronics to do it, but now it's easier than ever to tune your carb like a pro. In a time not long past there was that guy down the street from you–that special car-crafting guru who could tune an engine by ear. He was revered by the local gear heads for his uncanny knack for creating not just impressive power, but also for transforming chugging street slugs into razor-sharp sweetheart engines. He was like the Pinball Wizard–the deaf, dumb, and blind kid who could play those flipper fingers like he was part of the machine. We were all in awe of the Carb Wizard.

Float level can be used as a tuning tweaker for subtle changes to air / fuel ratio. Lowe is leaner and higher is richer. Redneck Rampage Collection Iso File. While that guy still exists, we’ve discovered a little piece of electronic technology that can turn almost any knowledgeable car crafter in a Carb Wizard. This latest development in handheld electronic-power knowledge is the affordable air/fuel-ratio meter.

While there are many on the market, we first told you about a favorite, the Innovate Motorsports digital unit, in “Tune In, Turn On, and Make Power” (Feb.’04) where we explain how it works alongside a few basics concerning air/fuel ratio and horsepower. This is such a potentially great tool that we thought we’d get into how to tune your engine using this tool not just for max power, but also to raise the bar for better part-throttle response and highway cruising.

While the Innovate meter is capable of logging up to 44 minutes of brain-numbing data, we’ll approach this tuning session assuming you’re going to read the Innovate meter in real time. Ideally, data logging is better because you can study the information more closely. WOT The best place for wide-open throttle (WOT) air / fuel testing is at the drag strip. Short of that, you can do Second-gear bursts of 2 to 3 seconds each and have a passenger watch the meter. For your initial work, you should shoot for WOT air/fuel ratios between 12.5:1 to 13.0:1. Remember to make only one change at a time and keep using the same test procedure.

If you’re at the drag strip, use mph numbers to help with tuning trends. As long as your changes improve trap speed, continue to move in that direction. In many cases, the combination will berich–like 11.8:1 at WOT. That means you should start by leaning out the secondary side of the carburetor. With Holleys and Demons, minimum jet changes of two sizes per step are a good idea. Free Download Gujarati Garba Song Maro Sona No Ghadulo Re. For example, if you want to run leaner, go from 80 rear jets to 78s. It’s also a good idea to start your tuning with the carb in its stock jetting configuration.

If you are five or six jet sizes (or more) away from the box-stock configuration, it’s possible there’s something else wrong with the carb or your engine. Part-Throttle Tuning Contrary to what you may think, street engines spend a majority of time at idle and at very low throttle openings. In addition, the idle circuit continues to deliver fuel even when the carb is delivering fuel through the main metering circuit.

Given this, the best place to start improving highway and in-town fuel mileage is with the idle circuit. A high-speed lean condition can often be traced to low fuel pressure resulting from an under performing fuel pump.

Most general-purpose aftermarket performance carburetors are designed to deliver around a 12.5:1 air/fuel ratio to avoid lean surge conditions.Most mild street engines can tolerate part-throttle air/fuel ratios of 13.5:1 all the way up to as high as 15.0:1. Keep in mind that all production EFI engines operate at 14. Free Download Naruto Shippuden Episode 93 Subtitle Indonesia. 7:1 air/fuel ratio and the drive ability is excellent.