2001 SeaDoo Utopia 185 acceleration issue

[mpstitan]

Hello folks I'm a new guy with a problem. A year ago I had choke work done to my 01 Utopia 185 as well as some new electrical items. It has been running great. Just now it feels like I have sucked something up in it when I try to accelerate. The boat will idle fine and do up to 5 mph, but when I try to go faster the floor vibrates pretty hard, the rpms go up, but no speed. I have looked at the impeller and the jet and there seems to be no obstruction. Does anyone have any ideas? Thanks!