Try twisting it as you lift it. they sometimes stick and are hard to remove.
The post the deck may have to be unscrewed at the base ( not removing the base plate ).
My 2400 was stuck to the point I had to put a strap wrench on it to get it to turn out
( was threaded into post )
1995 Maxum 2400 SCR 5.7 A1 G2 LUNA DE MIEL
1988 Bayliner 2455 5.0 IO (sold)
1987 Seaswerl 18ft C. Cabin 4.3 IO(lost in fire)
1976 16ft. Tahiti 2.5 IO (sold)