2007 V-Star 1300...

If you try to let it idle, it dies. No check engine lights. Gets horrible gas mileage (about 50 miles to a tank...) Will do about mach 2 under full throttle though. Runs very rich...you could probably burn the exhaust...

We did all the obvious stuff...fuel additives, fresh fuel, etc. Was on a long ride with some buddies and it was running fine. Stopped for fuel and boom...

Any ideas? I'm lost...