Issue has evolved from this to bad idle/startup. Most recent info found here: http://pnwriders.com/mechanical-technical/153958-ninja-250-stall-when-clutch.html#post2520676 Troubleshooting already performed: Gas tank is full Carbs have been pulled and cleaned Idle screw set properly to idle @ 1300 RPM Pilot screws set to factory Problem: Once warmed up, the bike will sometimes stall when the clutch is in completely. It happens almost without fail every time I go down a hill right outside my house. I pull in the clutch, and as I coast down the hill the motor will just fall below 1000 and die. It fires right back up though without any problem and I can go about my business. At this point it's more of a pain in the ass. The problem is almost exclusive to downhill rolls. At first I thought this was related to my idle issues as it had a tendency to hang out at 4000 RPM when rev'd, but after cleaning the carbs that's no longer a problem. So, clutch related? Some google searches implied that this isn't all too uncommon on these bikes, but I'd like some ideas on where to start with this particular issue. Thanks!