587 overheating

Hello, I bought an old 89 seadoo this summer to use as a toy for going up north and on the lakes where I live. I work on cars as a hobby, but know near nothing about jetskis other than what I have researched. When I bought the jetski, I didn’t test it out on water, nor on a hose (dumb me). I...

Hi, I am new to the forum. just purchased my 1st sea-doo. Was told it was a newly re-built motor on a 1993 SP but now i know it is a 1990. Interesting how much you learn about your machine after something goes wrong. The problem I have is this. Machine seems to run fine on land running off a...