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They were great in the 90s. The new plunger primers are so bad I put the chokes back in!

Keep in mind some tubbies will be grabbing all the time if their mounted too low. They can make the ski very annoying to ride until you are actually turning at high speeds. It looks like your hull is in good shape so enjoy it for what it is. I have had one since 1993 and still enjoy riding it...

Big pin 750s and 800s are nearly the same engine. They all have the same crankshaft. 800 cases are more desirable since they have some additional factory porting. Big pin 750s all have higher exhaust ports than the 800 cylinders. Get a new crank and find a nice case and cylinder. Small pin...

How big are you? That will determine how much you can cut off the rear and how long the pole needs to be. Get an idea of what youre in for by simply removing the ride plate and see if its still planes well enough. Start whittling away at the rear of the hull until it gets a little hard to...

With or without a rusty crankshaft? Its difficult to see without getting your hands on it.

They have always been cheaper than 701 cranks. The differences that I can see are 760 rods aren't externally machined and the wear ring is a simple thin sleeve.

Open the top screw on the rear carb. make the rear plug a little darker than the front at full throttle.

Im sure the noise standards will be much stricter for your ski than for anyone elses boat. Anyone with the authority WILL ALWAYS do whatever THEY want!!! It sounds like you have already been ousted.

It got too hot for your fuel. Where is your ignition timing set? Always slow the WFO rpm down a little with the top carb adjusters and stay rich of peak. A perfectly set carb can still do this if a little air gets in the fuel line. I always use a second pump feeding a small header tank {air...

The only "freestyle" you can do with a hull that long is a roll and hood tricks. You will blow the hood off and cave in the side before you learn how to do a decent roll. Old Superjets are great rec skis but won't survive side landings. Every Square nose SJ that came to our ride spot was...

For what compression, fuel, RPM, and carb setting? I cant tell you but I know they're easy to burn up.

Carbon prepreg tends to be a little dry and stiff for jetski use. Plus its expensive. If you can get free material then go for it.

Racing oils are made to work at high temps and the more you pay the less petroleum they tend to have. Cheap boat oil has the most corrosion protection and corrosion tends to be a big killer of PWC. Very few riders will be around long enough to ever see this with their own eyes.

Maybe try burning methanol with as much nitromethane as you can afford?

One of the great aspects of Arizona! Florida may be more of a challenge. Here in north central Texas, its not terrible but I do have to make an effort to keep everything as dry as possible. I have found plenty of skis in this area that have been destroyed because of careless storage. Maxima...

Use TCW3 oil and get the engine hot on the trailer before you leave the lake and again when you get home. Almost no jetskier does this thoroughly enough, thats why almost all cranks out there are rusty. Make sure you store it with the hood cracked open. Unlike an outboard, our exhausts and...

With an untuned exhaust, any amount of back pressure will cause a loss of power. All things considered, Yamaha probably made it larger to lower the pitch of the exhaust sound.

That’s corrosion.

The difference is minimal if you are running a stock Superjet exhaust. An aftermarket pipe needs to build some back pressure before it can work. Opening the exhaust after the pipe just makes noise.

Most $5000 Superjets are in no better condition.