Is a 2001 GTX for me?

[Dbrown6240]

Why so much hate for the DI? I personally think it is the best SeaDoo motor ever built and the design was years ahead of its time. A very technical motor that most don't understand. Not difficult to diagnose or fix if you understand it and have a little experience with it.

Carb 951s are good too, still rebuild them on a regular basis and many times from people using the wrong oil which is what your new ski has in it. XD50 is a TCW3 oil and not recommended for your ski and it will tell you that right where the oil cap is located on the ski. Seems most people don't know how to read anymore. Some people will say that TCW3 works fine but SeaDoo did testing and published results back in the day that showed piston wear with their full synthetic xps oil and several others including tcw3 oils. Are they biased? Of course, but I believe their results based only from experience that skis that I service and the people only using XPS full synthetic that the engines last longer. Do they still blow up? Yes, all 951s have a limited life, that is the design, but they absolutely last longer in my opinion with the proper oil.

You should check compression. Then change oil to what is recommended by the manufacturer.

So can I start using the oil recommended or do I need to run the old out first?

 

[ski-d00]

Never mix oils, you don't know what you're going to get. If it were mine, I'd empty and drain the entire oil system and replace with what the manufacturer recommends right away.

You should have checked the compression before you bought it because a test ride doesn't always give you the actual engine health. You should still check the compression now to confirm it is not going down which will lead to future engine failure.

 

[mikidymac]

... that's a direct injection 951... run like hell. DO NOT buy it.

They made both colors in those years. IF you look at the GTX sticker it says "Powered by Rotax Marine", The DI's say "Rotax Direct Injection".

Get that oil out and change the oil filter.

 

[SabrToothSqrl]

They made both colors in those years. IF you look at the GTX sticker it says "Powered by Rotax Marine", The DI's say "Rotax Direct Injection".

Get that oil out and change the oil filter.

my bad, I saw the text but couldn't make it out in the photo. The DI is a fine engine... but at 15 years old, parts, diagnostics, and reliability are... more difficult than a carb engine. brand new it was a marvel.

 

[Dbrown6240]

Thanks guys. This is a newbie question but how do I make sure I've completely flushed all of the old oil.

 

[mikidymac]

I drain the tank and clean with solvent (gasoline) then air dry. Replace the oil filter. Then refill with correct oil. Then open the small bleed screw on the oil pump until the new oil flows out. Start the ski at idle pull the oil pump lever full open until you see the lines full of the new oil. Don't run it too long at one time or you can burn up the driveshaft seal. It is ok to do it a few times with time to cool inbetween