So the wife and I just bought our 3rd gsxr. It's a 08 600 with 10,000 miles. When we went and looked at the bike I of course rode it around the guys subdivision to make sure there were no ticks, the clutch felt ok and it shifted through all gears. I never really got on the bike till we got it home.. The bike runs great till about 8 to 9,000 rpms. Around there it falls on its face and throws c39 which is secondary injector signal #4. Any ideas what's going on? Thanks yall..