Running like sh*t?.......
I don't think the word "sh*t" is an adequate example of letting us know what your problem is.........besides, it's a language violation. Please try and be explicit in describing your problems. I understand your frustration.
You have the 951 and from what little information we are getting, it sounds like to me, you either have a carb problem or a problem in your reed valves. You may have a bent reed valve or even a piece of carbon or grit wedged in one.
Your carbs may still not be adjusted correctly, causing the irregular running conditions......trying to tune on the land is all but impossible. You need torque on your impeller to really get a good adjustment.
If you can, get it in the water to adjust the carbs. If your not idling well, try adjusting the two low speed screws. What change you make to one carb, you make to the other carb. See if this helps. Also, if you've had the carbs apart or removed from the ski, you'll need to check that they are syncronized correctly.
Your water from the "tell-tale" may not be present by your running conditions. You need to have the engine running well at 1500 rpm or over before you'll see a nice stream of water coming from the tell tale hole......
Please try and bring in accuracy in your description to get better advice. Avoid using curse words, as they do not give any real description of your problem and no way for us to know what is going on.:cheers: