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Just spend as much money on the ski as you can until you lose interest in it next year. That is all everyone else does.

Put some heat on it for a while. It may have a sticky film on the surface (blush) that solvent will remove.

You MUST make sure the head and cylinder are perfectly flat anytime a metal gasket or O-ring style head is used. Stock fiber gaskets will seal irregular surfaces a lot better. Im surprised to see as many people getting by without lapping their cylinders.

The one I made was a time consuming experiment that worked very well. Next time I'll just adapt an old Seadoo box.

They are just another cool accessory, it goes nice with a chrome gas cap.

I build a fiberglass tube 7" diameter and made three hemischerical ends. The first chamber was 70%.

You will probably burn the front piston with a big single.

All 750SX came with a single 40mm Keihin CDK2.

Learn how to tune a leaf blower first. They will teach you what to listen for since the fan loads the same way our pumps do.

You can make a composite box very lightweight as long as it is cylindrical with spherical ends. Any flat areas will bend and break during an afterfire. I made a two chamber box out of fiberglass that was very quiet and weighed 2 lbs.

Your idea will create a lot of down force at the rear of the hull. It may be ok for slow speed riding and backflips only. Even a slightly bent rideplate will make a hull porpoise at higher speeds.

It sounds like you have already picked most of the low hanging fruit, maybe shorten the hull if needed. From here it gets expensive for what you get.

The stock Wetjet domes should make 160-170psi. Make sure to use a 61X gasket or match drill water passages in a 62T gasket. Use only OEM or those green A/M gaskets. Any A/M gasket with graphite will destroy the metal surfaces.

Blades are cambered to establish a boundry layer on the top surface. Straight pitch blades are too steep at the leading edge for this to happen until the boat is underway and there is some head pressure.

The last number usually coinsides with the last half of the blade at the outside diameter. The first number never seems to match the front of the blade. All modern blades are cambered, this makes them cavitate less and run a lot smoother. The old straight blades were just that and would vibrate...

It is all relative. How poor are the methods/materials they are using for comparison? ANY change is for cost savings with absolutely no regard for the product or customer. Generally, the customer knows nothing about the product he buys so the 1% that makes technical inquiries are scorned.

That sounds pretty good. A lot of freestyle boats have such rich pilot/popoff settings then they guzzle gas in the surf too.

The resin infusion method allows high quality layups with the use of cheap molds and common materials with less labor. Prepreg material is used much the same way but its a lot more expensive right now. SMC molds are for high unit production and only used for couches anymore. Cheap low...

Its easier to gain lift and reduce pitching effort on a shorter/wider hull. Start shortening the hull until it is difficult to plane then add width.

woops