I have an 07 strert bob, with efi. The bike has appx. 45k, i was out riding today and started riding a little rough. During idol at traffic lights it would back fire. When i was finally able to stop, there was a smell of fuel. Also had a loss of power, was still running byt does not have the normal power. It was definitely burning more fuel then normal. Any suggestion? I checked the air filter it was clean and left the cover off until i arrived home, seemed to run a little better without the cover. Any suggestions????