I have a 02 honda 600cbrf4i with only 3000 miles on it. I havent had any problems in the past its been sitting for 6 months. When I went to start it ran for 20 minutes and shut down by itself and was hard to start again. I change the oil filters spark plugs flushe out gas tank put in new fuel cleaned air filter. Stil haveing the same problems and more now it runs for 20 minutes blows oil out of the exhaust pipe and white smoke. Ive started it every day runs starts okay and when it reaches 160 on temp gauge it shuts down by itself again. I dont have any money to take it to a shop cause IM unemployed can anyone help?