I need to clean or rebuild my carburator on my 40hp envinrude. I was not getting any power on full throttle and was recommended to do this from the great people on this board. However there is a huge back up to get the boat in. How hard is it to do this yourself?????? If I have step by step instructions I think I could handle it. Can anyone point me in the direction to get the know how. Or should I just hang in there and wait for an opening..... Help missing the fishing....