Get the pictures and follow the lines, replace those that are in the picture but not on your machine - so many times in the joy of getting another boat neither owner remembers to get the oil from the old owner - 2stroke oil often gels when mixed and it appears to the inexperienced machanic the pump is faulty when it just can not push the oil gel thru the nozzles, premix overcomes this - sorta, you get oil but not variable like it should be to prevent plug fouling and it is more costly to run this way, search here about it and chances are you will be looking at other seadoos for a hands on idea how that last oil line is supposed to go on. Then you can flush your oil system and begin to save insect life and money.
Stop back anytime and ask more if needed, a lot of helpful puter users here.