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I think its that way all over, I know the DFW area is dead compared to what it was 10-15 years ago.

You will NEVER get your money back in this hobby, or any other for that matter.

You’ll have to get creative when it comes to padding. Jet skiers are more likely to wrap it with barbed wire since that would look cool.

Now he needs to figure a way to use more than one at a time.

As an example of how uncritical the pop off numbers are. On keihins or SBN44-46 I could adjust the whole part throttle range by stretching or clipping the spring until it responded perfectly. No jet changes required! Now I use 115g spring and change pilots since I have so many.

The FX-1 is more a novelty ski. The tiny pump limits its low speed thrust ability. You have to lean it on an edge to make it turn, like and old Kawasaki. Fun to ride once you figure it out. The Superjet is bigger and easier to ride, its larger pump can make decent thrust. These skis are old...

You are young and have a lot to learn. Stick with the hobby for a few years, learn how to ride and tune. Most people just show up, throw a lot of money around, and vanish very quickly.

Using a lighter spring will make the bottom screw and pilot jets richer, it wont have much effect on the main jet and top screw. If its a new engine always open the top screws until it loses power at full throttle and run a tank through it tuned that way. You want to limit combustion temps while...

I find this to be true. If the rider is slower with throttle inputs the popoff can be raise a lot more than you may expect. All SBN44s have no problem opening a 115 spring, even on single carb 650s.

Make sure the top screw is tuned slightly rich of peak rpm. Then step up the pilots until the hesitation goes away. They always have to be four cycling at 1/4 throttle for best response. I have had dual 38s and a single 44 that could run cleaner at part throttle than any dual 44 or 46 arrangements.

Start it out of the water and close the bottom screws until the rpm goes way up. Then open until it slows back down. Two strokes can run with a very rich mixture. You want it just rich enough for good response from idle.

If you do find an online archive do yourself a favor and ignore it. Most postings will be very rich at part throttle and too lean for extended full throttle runs. This is okay for freestyle but not the best for other rec riding. If you have no experience then learn to tune a leaf blower. Their...

If MFGs would provide bottom dimensions the only question would be how much grip it has.

A friend has a 750 that was separating the NGK insulator from the base. It was over propped and had too much timing.

They pumped up the engines without also increasing the durability of mechanical parts. This is nothing new for auto MFGs and will never change until they increase warranties by a lot. I remember Caterpillar giving an 850K engine warranty so they did a good job making it. New car customers...

The bottom screw feeds the lowest hole so it sets low idle mixture, set that out of the water { rich of peak rpm }. The pilot jet feeds the holes above. Size the pilot so it fourcycles around 1/4 throttle in the water.

Pull that carb apart and make sure everything is clean and working perfectly. Single carbs need larger jets than duals. Ive never been able to use a pilot smaller than 120 and mains smaller than 150 in a single SBN44. An SBN46 would need larger jets than that on the same engine. I also keep...

Air in the feed line will first reduce pump pressure then some will pass through the jets. I use a separate pump and high mounted tank to make sure the carb gets no air. I have burned a piston running low on gas.

It is common for the tank vent check valve to stick closed. Single carbs are super easy to get the idle mixture set. Close the bottom screw to find peak rpm then open it to slow it down. The screws final position will vary.

First, start with checking the fuel line from the bottom of the tank to the carb. Then open the bottom carb adjuster until idle rpm slows down, make sure idle speed is low. At this point it should be impossible to get a diesel runaway. If it still runs away you likely have a leak below the carb.