The short story: Bought my 2009 500 HO at Easter. About a week later, I put it on it's side. It kept running so I just turned it back on it's wheel. No problem. We went vacation last week and we were WAY out in the sticks and it died!! It made like it was running out of fuel and died. Checked the tank, still full. Waited about 15 minutes...still no start!?!?! Had the wife and her new HO 400 tow me. After about another 30 minutes....fires up like nothing's wrong!?!?! We headed back to the trailer....POST HASTE!!!! Just got back onto the main trail back to the trailer and the same thing all over again!! Had to winch onto the trailer. Went back home to the dealer. The mechanic found that there was about "2 ounces of oil in the air box". He cleaned the oil up and replaced the filter and said it was OK now. We took them for a ride on Friday and the same thing happened again!! This bkie only has 50 hours and 400 miles on it. I am not a happy rider right now!!! Let me know what you think about this stalling problem. It has me wondering if I made a mistake buying this bike!! I was advised to buy "carb" instead of EFI......HMMMM.