![]() ![]() Comparing the dyno output was night and day. I had a map put on my R6 and thought it ran "better" and then I actually had my R6 tuned and saw a huge difference in how the bike ran. Saying my bike runs "better" is also very subjective.because it may "feel" like it runs great when it actually doesn't. So I chose to take his word as he works for Yamaha. I got a warning from a friend about the 2020 R1 and he's never warned me about any of my other Yamaha's. How different bikes react to running lean varies. I saw that when my 2020 was put on the dyno. My 05 R1 had the least reaction but my 2016 R6 had the worstĪgain every dyno run I've seen posted showing before and after a stock exhaust has been removed has shown it to run lean. all of my bikes had the same reaction and that was the exhaust pop, smell of fueling, and other signs that the bike was set to run in that way. So yeah the bikes will run without the cat but doesn't mean they should. That blarb from Revilla doesn't mean anything. Reading and writing via bootmode by KTAG without any issues, but after any mod writing the engine doesnt start, im pretty sure checksum is problem in this case, because KTAG doesnt correct anything. ![]() As for leaner with or without a cat, I'm not a mechanic and don't claim to be so I can't really speak on it. Hi guys, I have got problem with Mitsubishi F8T2XXXX ecu from Yamaha R1 RN12 MY2004. At some point people have combined the two and now say the bike can't be tuned, which isn't the case. The "issue" is the ecu can't be flashed so built in restrictions (throttle, max speed, etc.) can be removed. There are options to tune the fueling of the bike, at least 4 of them and have been for most of last year. Once this harness is installed it allows you to flash the ECU without. IAP Fuel Maps TPS Fuel Maps Ignition Timing Maps Electronic Throttle Valve (ETV) Maps. Features available for Yamaha YZF-R1 2018-2019 YEC. ![]() Unless you download the ECU firmware file and clear codes in the file you download and re upload the changed file, but I don’t know how to do it. Click to expand.This is where this whole thing has gotten blurred. Woolich Racing Yamaha YZF-R1 YEC ECU Flashing products allow you to tune the maps and settings in the Yamaha YZF-R1 YEC ECU. Flashing does not remove fault codes, I learned from FT ECU tech support, after the fact. ![]()
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