l put normal marine jet ski oil into my 1996 seedoo xp will anythign happen to it?
Well my see doo is 2 stroke so l poured marine oil into the oil tank where the oil goes, l saw on some websites thatthere was special oil, but could anything happen?

Your question is not clear..By normal are you talking about mixing oil (what kind of oil)with the fuel or where did you put this oil??? l do not understand what you did exactly???? More info please.

l have the same unit l use only seadoo oil from the dealer yes it is expensive but l never have any trouble out of my unit!
DONT MIX OILS!! Meaning if you have poured in another brand of oil then try to run it out then go buy Seadoo oil you should be ok ...

If u mean that u poured Seadoo brand four cycle oil, like for a newer machine, into the injection tank of ur two stroke, then STOP!!!

Get a container & some rags, find the hose coming from the oil tank to the inline filter, & drain the tank into ur container. Get as much out as u can. DO NOT just run it. A little bit wo not hurt you, but Seadoo is use rotary valves, & they will coke up with motor oil. Use TCW-3 two stroke oil only. Drain as much as u can & fill with the correct oil.