I sent him my ECU, and the next day Ivan called me and got all my shipping and payment info, and it was mailed to me the next day. (more relaxed gear changes and throttle modulation at highway speeds)įree upgrades when/if we make improvements.ĩ) Return your ecu back to stock at no charge for any reason. (some tests shown below at 6000)ĥ) Anything that compromises performance and/or driveability is eliminated.ħ) Reduced heavy engine braking on decel above 2500 rpm. (the ones that cannot be fixed with an external fuel tuner)Ī) Gets rid of poor throttle transitions from closed throttle.ī) Gets rid of annoying popping and banging during decel and also when re-applying the throttle from closed.Ĭ) Throttle modulation is noticably improved over what can be achieved with a fuel tuner alone.ĭ) Feels buttery smooth upon re-application from closed throttle.Ī) Gets rid of part throttle timing retarder for more response and less vibration when cruising and moderate acceleration.ī) Gets rid of high rpm timing retarder allowing the engine to make power for longer.Ĭ) Set timing for maximium power and driveability across the entire rpm range & all throttle positionsĤ) Raise rev-limit in all gears to 5850 rpm. ( This is directly from his website)ġ) Fix all inherent fueling problems inside the ecu. Here are some of the things his ECU flash fixes. He does require a Power Commander to go along with his ECU reflash He spent a great deal of time talking to me and detailing how he reprograms the ECU and some of the problems he fixes. The first time I talked to him I could tell that he knew what he was talking about when it came to EFI systems. When I found Ivans website I was really excited and gave him a call the next day. The current fuel tuners for the stratoliner are piggy back units and are only good for adjusting the final amount of fuel going into the engine, and cannot totally eliminate exhaust popping, and are very limited as to what they control. mine OK after 21 years, but no one had added any accessories either, and it does have a chassis ground location in addition.I was really excited when I saw on another Stratoliner forum about someone being able to reprogram the stock stratoliner ecu and fix some of the fueling problems inside of the unit. On my VFR, I have a 12-way spider, some had issues with those, again small gauge wires that carried 90% of the grounding on that bike. Suzuki uses a very similar (if not the same) spider, but their wires are more robust, and I doubt they had the load that S4 had. Others got on them early and put contact paste in there, but that wouldn't solve the potential overload at S4, but I don't know of any who had problems if they did get to all that early on. Those with melted connectors could just cut off the connector, solder them together with a heavier gauge wire and take it to a good ground. If one had the mating connector you could take the 6 wires, perhaps consolidate them into a heavier 12 or 14 gauge wire, and take that to ground independently. would solve the majority of the issue for sure. it did not address others, but was quite robust in itself. There was a recall on this to address only this S4, and it took a heavy gauge wire to battery ground and an auxiliary wire to the engine ground. obviously the last one, we call S4 took all the heat so to speak and more than likely would heat up, melt the plastic connector as oxidation and poor contact occurred over time. The wire gauge is small, but one of the six wires carries the ground to the next spider in series. The spider is a 6-way connector with a metal piece with six fingers that go into the six terminals, then is capped with a black plastic cap.
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