having problems with my 09 6hp merc. motor starts full pull, and idles for ever with no problems but as soon as i give it gas to get underway the motor starts sputtering and shuts down. then i give it one pull and it starts up and idles fine, i just cant get go. i have been house hunting the last4 to 5 months so have not been using it as much but i run it dry every time i use it. if anybody has have the same problems any info would be great. by the way its a 4 stk.