Hey guys, looking for a small engine mechanic who could take a look at my boat motor for me. It is a 92' model Onan Performer on a longtail go-devil frame. It has been surging all of a sudden and i cant seem to pinpoint the issue. I have already taken carb off and cleaned real good, bought new gaskets and rebuilt. After reassembling, i cranked it up and ran like it should. Made a fishing trip this past weekend everything was good till i cranked up to head back to the launch. Soon as i started the motor it ran like normal then would start surging..... bog down, rev up, bog down, etc.....I am somewhat mechanically inclined but this has me beating my head against the wall......NEED HELP!!!!!