Couldn´t be bothered with a Power Commander and couldn´t even find one for the 630. But am very happy with the JD jetting which has provided a wide variation to optimise settings.
I agree...Autotune is way too much sophistication for a single cylinder bike. I would guess you'd be paying at least a grand to have a PC w/ Autotune installed and dyno tuned. For a little over 2 bills, get a JD unit, mount it to the handlebars, and enjoy the fun of using the ol' butt dyno to tune your bike. You can literally make a change to the bike, ride a bit, and at the next stoplight change it back in a matter of seconds to see if the change was better than the previous setting!
the problem with the auto systems is there is too much variation in single cylinder exhaust pressure to really get a consistent reading. the tuner ends up with weird spikes and valleys because of the flow of the gasses. read the entire thread in the fuel section of the site titled "autotune=holy grail", you'll find its actually not.
I disagree with your comment of "you get what you pay for" in this situation. The JD Power Surge 6X is hands down the single best performance mod available for a Husky 630. The unit is under-priced if you ask me based on the performance it can provide and its high priced over engineered competition available. There is no laptop needed or hours on a dyno required. Just a simple plug and play if you will. Husqvarna's engineers spent countless hours developing a bike specific ECU that no aftermarket can make any better. EDIT: The JD tuner utilizes the Husky ecu and adds or subtracts from there. With the JD tuner there are no mapping changes with a "bunch of buttons on your bars." That’s a really misleading and incorrect statement that is pointless. JD simply and effectively allows you to adjust the fuel supply in a similar fashion as a carburetor. The control pad can be mounted anywhere the wires will reach. A common place for final mounting is under the seat once tuning is finished. Knowing how an engine works is a large part of making it work better. Not knowing the device you chose not to buy and then making it sound inferior to the one you bought is silly. If you’re happy with the bazzaz fuel controller then great tell us all about it. Those of us who own a JD tuner know what we have and how well it works. Do a quick search and have a look for yourself.
No where did I say that the JD tuner was developed by Husqvarna engineers. You misunderstood my comments above. Husqvarna's engineers, like any other motorcycle manufacturer, spend countless hours developing a model specific ecu that does a lot of things simultaneously. The JD EFI tuner was developed by James Dean of JD Jetting. James' device is a "piggy back" fuel injection module that essentially utilizes the oem ecu and adds or subtracts fuel from that. He didn't try and reinvent the wheel and create a custom ecu map for each bike. Again as I said earlier, if you like the Bazzaz then fantastic, use what works best for you. Post your results and experiences with that device and all 7,000 plus members can read and draw their own conclusions about it. I was a surprised to read your negative comments regarding the JD tuner and how they were based on inaccurate references. Go ahead and bash a product you've owned and had problems with. In life it’s bizarre to hear a person offering their opinion on a product they don't own or use...in a negative or positive way. Sometimes the status quo becomes the status quo for a valid reason...because it works. ATD1 was just joking around man!! You’re absolutely not stupid for posting your opinion. An opinion is what it is. Once people have formed their personal opinions based on facts, we can then have an intelligent intellectual discussion. Toxic Logic, best of luck with your Bazzaz device. I'm sure others are interested to hear how it works in real time.
Can you explian how the gearing would impact the map design? I've never in all my years around motorcycles heard of this.
If these bikes had a gear selection sensor, it could be used to smooth out power delivery in lower gears, but they do not, so it makes no difference...
