Issues with 06 rxp

[06rxpscic]

Hi I am recently experiencing some issues the ski should idle near 1800 rpm this its now on idle its close to 1100 rpm, missing then out of the hole there is hardly any power, (not seaweed induced) pegged its only going around 40 then cleans up and going 65+ after I stop it will do it again any ideas, when the key goes in it shows the mesasge maint, I am assuming it means maintenance and will be going into the shop on thursday its just my day off and 95 deg really wishing i could be on the lake, If anyone has Ideas please shoot them back at me thanks