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This is supposed to be the Ultimate Turf Glue as this is what Custom Orthopedic Shoemakers use. Pricey but super sticky and resilient.

Because of the heavy loading of the Boat + 2 Passengers, Upstream River Current, and hard Turning, you're better off keeping it on the rich side. With all those loads, the Engine is straining, and the Crank is twisting at the hard turns which changes the Piston/Port Timing resulting in higher...

Always thought a Nikasil or Tungsten Carbide Coating would be ideal for the Seadoo 787/800 Intake Rotary Valve Surfaces to prevent wear & tear which affects the Rotary Valve clearances, and to lower the friction and thus heat which requires a very expensive Seadoo API-TC Oil to operate. But...

@Senator416 So what did you find out about the Fuse blowing during plug in? Did you fix the problem? What fixed the problem? Feed back your findings to close the information loop so that everyone can learn and benefit from the results...

Take Compression readings at the beginning and end of each riding season. Write the readings and dates down in your Maintenance Log Book. Once the Compression on either or both Cylinders gets too low, it's time for a Rebuild.... Average Stock Cranking Compression is about 155 psi. When it...

Miguel has been busy...

Any more photos of your Pump Setback Project? Did you add more Inserts for the extended Pump? Used standard Jetski Brass Inserts? Rivet-Nuts? How many Bolts are holding the Pump in place? 4 or 6? Did you swap Impeller Shafts? or somehow add a 3" extension? And the Steering Cable? Added a...

So it that a 3 inch Pump Setback then?

Is that your Ride Plate? :D

Double-check the two Positive Red Cables going to the Relay Solenoid. Are they reversed? Did you use an OEM Relay or an A/M Relay? Sometimes, the A/M Relays come with Posts "reversed". Is the "Hot" POS Cable energizing the Starter w/o the Start Button and the Relay Switch closing? Looking at...

Since you used my Numbers... Evidently you read right past my "very rough ballpark guesstimation" statement. The 750 SX is rated at 63 Hp @ 6000 rpm by Kawasaki. And Kawasaki also specs 551 lb Thrust. I used 550 lbs in the calcs :oops: The 701 Superjet is rated at 73 hp @ 6300 rpm per Yamaha...

Not necessarily a mid-ride switch, but a Curve choice for type of riding that day. Practice Day versus Race Day... Pump Gas versus Race Gas... Endurance versus Sprint Riding...

I'd like to buy the B Mod Pipe...:p

The Zeeltronic CDI draws power at all times. It's supposed to be a minor draw but... Do you have and Electric Bilge Pump? Inspect the Switch and Pump.

'Tis the Season...

Okay, assuming there is no Current and only the Ski is moving: Water (Fluid) Dynamic Pressure is based on Momentum Formula 1/2 Mass x V*2 or 1/2 x Density x Speed Squared with Water Density in Slugs per Cubic Feet given rounded-up as 2 Slugs/cu. Ft. A Slug is a Unit of Force based on Gravity...

Go Yamaha!

Yes, there is a performance contradiction for Jetski Thrust optimization. A few Balls in the Air to keep track of... At low speed, we want a big Pump for slow incoming Water fed thru the Intake. But for high speeds, we want less Water/smaller Intake Duct and a smaller Exit Nozzle. Both can be...

Axial Flow (Jetski) pumps have large flow and low lift versus Centrifugal pumps have small flow and a high lift. Apples and Oranges. If someone would use their Ski to Pump Water at WOT into a known volume Container and timed the fill-up time, actual GPM readings could be obtained. No Jet Drive...

So did the new Start/Stop Switch Harness fix the problem 100%? What is the end of this Story? Need to close this Thread with a proper resolution....