I've got a problem with my tuner and my '10 YZF. The bike only has 11-12 hours on it, and it's been great every ride. The tuner has been great too, having the ability to tune it for shrt and long tracks, slick and loamy, muddy etc. has been great. Last ride before today I uploaded a map into the tuner, it was a tweaked version of one of the maps on Yamaha's website. The tune was OK, but needed more tweaking. That's besides the point. The problem is it won't come off of the ECU. I loaded the Marmont tune (Map 01 in my tuner) last night, or so I thought. I get to the track and the bike seems very, very similar to last ride which shouldn't happen because I started the day with Map 01 and switched to my other tune (Map 07) halfway through the day and noticed a huge difference as usual. Now mind you, I am also trying new gearing, I went to a 50 tooth rear today to bridge the gap between 2nd and 3rd. The problem with the map I made was it made the power more like the old motor, mid to top type power band with little to no hit off the bottom. So when I switched to the Marmont tune today I still noticed no hit, then switched to stock and still no hit, even with 2 teeth lower on the gearing. OK, now the problem. I retrieved the map from the ECU to see what's up and lo and behold, my Map 07 comes up. I was like ***? So I immediately loaded Map 01 and retrieved it, it came back as Map 01 on the ECU. Went and rode a moto same performance, retrieved the map, Map 07 came up, again ***? I erased Map 07 and made it all zero's like stock and loaded and retrieved it real quick, no issues until I start and run the bike. Whether I start it and let it run for a few minutes or go ride a moto, same performance, and when I retrieve the map the old Map 07 comes back. A big ***??? I erased Map 07, it's all zero's until I start it then the ECU remembers the old Map 07. Sorry for the long post, but is anyone having similar issues? Anyone know a remedy? I've changed the batteries, I've checked for codes, nothing, nothing, nothing. The bike still runs fine no probs, I just wanted to load a map with more hit for the track I was at today whether it be stock or one of the other maps I have.