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Flywheels and stators are common between all 750s. Big Pin covers are heavier but fit the same.

Just get a used Thomas or Gast air pump and suck out all the water. Put the suck line where a drain would be and drill a small vent up top. I did this, it took three days in the summer to evaporate all the water. I also found all the leaks and sealed them until the hull would hold some vacuum.

The bottom price of an old ski is whatever a kid that wants a ski is willing to pay. Problem is that its usually too much considering the condition of whats out there today. Old skis are great deals only when they are in great condition. Its getting difficult to find a cheap way to get anything...

Ive got a 650sx that used to beat Superjets in slalom. $3000, a bargain at twice the price.

They should try selling turn key titled Rickters with a $100 EPA certified lawnmower engine installed.

Does the longer nozzle require more effort at the bars?

Kawasaki 750s have a built in vent valve that holds some positive pressure.

The 92 and 93 had slightly different graphics. The early 92s had VERY thin piston skirts that would easily break. They also had a CDI with no rev limiter and no retard curve, its the box marked 3729, if you find one throw it away. 93s had heavier pistons and the 3733 CDI which made the engine...

There is no way to take advantage of the extra rpm in a watercraft.

OMG, a dry TDR. I guess everything "FEELS" fast if it rattles your teeth.

Hotter ignitions also need better insulation on the high tension side. Its easier to have salt water gremlins if everything is less than perfect. I wonder if those $50 model airplane ignitions will work on a ski.

Thats because the "no limit" mod is such a bad idea.

Start with an SXI CDI.

I see in your description that the carbs have been bored. Thats your problem. You may need stock flame arrestors to some fuel draw back that the hatchet job killed.

You need to find out what rpm its turning and the prop/nozzle specs. There could be some thrust left on the table if the pump loading is too high.

You can check it as often as you like but unlikely to find much change as everything is metal to metal except the base gasket. Its the stock fiber head and pipe gasket that need a re-torque after a good heat soak because they do crush.

It all depends on what you expect from throttle response and if you are willing to tune the pump. Higher ports make more power on the pipe and less below. Adjust the pump accordingly and you will probably find happiness. Unless you are spastic with the throttle.

It was due for a complete round of maintenance about 3.5-4 years ago.

A running 650sx is a good ski if its dirt cheap and if you have no performance expectations. Almost all old skis are in junk condition (even Superjets!) so concentrate on finding the very best one you can afford regardless of what it is.

Find a straight 15 or 13-16, 14-17, 8-16, 9-17, or a Solas A. Everything else will overload the engine without a custom repitch.