How much oil should I be using?

[bmongan]

Hi guys.
I have a 1995 Sea-Doo sp with a 581 motor and I am a newbe
This may be a dumb question, but how much 2 cycle oil should I be using? Does this mix at a 50:1 ratio like an outboard motor? I have used about 12 gallons of gas so far but probably less than a qt. of oil. I would guess more like a half a qt. Is there anything I should be checking on the motor like an oil filter for the oil pump?
Thanks for any help you can offer.

 

[JJinSC]

With the oil injection system it mixes variable dependant upon throttle position. If you run WOT it will be using 40:1 mixture I believe. It will use less oil than premixing. If it hasn't been done in a while, change the oil filter. If you do it right you can do it without the need to bleed. Otherwise, Follow procedure for bleeding afterwards.

 

[bmongan]

Thank you for your help.
I just ordered a filter and will change it this week.
Do I need to pressure test the system after changing the filter, I was reading something about that.
I am using very little oil but we have a lot of seaweed here so I have been doing a lot of slow rides back to shore to clear the water intake.
I did not realize oil mixture was dependent on throttle position.
Thank you for taking the time to school a newbe

 

[Mickirig1]

You really do not use much oil. The average owner may go one gallon a year.