2003 4 stroke

sorry about my english ,,,i store my engine for the winter it was running good and i try to start it today want start after that i found water in water separeter i change everything exept sparks after a while he start to run good i went to try it on water he want go at high like missing rpm on sails could i have to do things before to bring that things to the dealers,,,,,,please need help

[boats.net]

Sounds like need to remove clean carbs.