I have a 1987 kaw standup 550 jetski just got it and would lke 2 no if th bilge pump is n anyway 2 coolngsystm

Question

my ski has been bored over twicethe top and bottem end have both been rebuilt recently under twenty hours it has a coffman exhaust supertrapp k&n filter after market prop aftermarket ride plate when i took itoutto ride the outlet for the cooling on left side of ski barely comes out no more than 3-4 inches would bilgepump affect this if it was disconnectd

Answer 1

The bilge pump doesn't affect how much water your cooling outlet puts out., it works off a vacuum principle from the jet pump and isn't connected to the cooling system at all.  Sounds like you might have a restriction somewhere in your cooling system.