hey thanks for that but my oil seems to be ending up in the hull right near the prop casing?? i cant see it leaking from the bottle? was it hard to get it all out cheers
If you park your ski tilted up at the front, like I do, then the oil tracks back under the engine to the rear of the ski. It is possible that your leak is not the tank, but the most common oil leak with this model seems to originate at the tank seam. It is a poor design and the adhesive used in manufacture breaks down. Test yours by taking out the glove-box for better access and then run a clean paper towel right around the seam (don't forget at the back against the fuel tank too) and see if it's wet. If it is, your tank has to come out, no ifs, no buts, no other way I'm afraid. You could source a used tank, but the same problem will probably occur again. It's better to do a permanent fix by getting it professionally plastic welded. All plastic bumper repair shops have the right materials and equipment. DON"T RELY ON GLUE OR SEALANT. Even though some are oil resistant, a proper welded seam will last forever, probably cost less $$, and you only need do the job once. You'll have a better tank than a factory one.
It's not hard to remove the tank, say 10 mins, but getting the oil out first takes time with a syphon. You can disconnect 1 of the oil tubes at the bottom of the tank, and drain it into a clean 3 litre plastic milk bottle or similar tipped slightly on edge and squeezed in. If you have more than 2.5 l in your tank, you'll have to block off the outlet once bottle is full and fill another. As long as the bottle is clean, re-use the oil. Empty tank easily slides out on slight angle through the front hatch.
When re-installing tank, it can be hard to re-connect the centre rubber strap. To make it easy, I tied a piece of string around the left side strap and secured it to the petrol filler neck on the tank, and then you can simply pull the other one across to it. There's only room for one arm at a time through the hatch, and you need to hold the 2 ends together otherwise. I prefer easy!!!. My motto is
"if it ain't easy....it ain't right! Good luck.