possible fuel issue????

[xtremefisher1]

so i take my boat out a few days ago and it ran just fine 63 bigtwin 40 hp. i turn around and head to the dock and it wouldnt go full throttle. it would just bog down and die.. try to restart it and it wouldnt unless choked. it started up and the i slowly made my way to the dock on the way i would try to open her up and she wouldnt go. get closer to the dock try it agian and it goes wide open..


i am not sure what happened had lots of fuel it has lots of spark , any help would be great... could it be a messed up coil??? or a sheered flywheel key??