Same problems, could try Tuning the RAVE valves for the load and getting a wake tower for better angle then the center post. I personally like the single because its ½ the trouble. You just got to hump it up a little, at your own risk and pocket book.
There are good reads for modifying 787…. Under 97 / 98 SEA DOO racing (racing/1998/1998-seadoo-racing-book.PDF) there is lots of sites to give you info and good mods that don’t screw the reliability.
Just Look at what can be done.
1995 Seadoo Speedster Custom Built 1 of a kind Race boat. This is the only boat you will find in this world with the amount of customization done. A lot of money went into this. Do your research. You won’t find one.
This boat was built by Green Machines in Hialeah along with Help from Moto Tech.
List of work done
2 Seadoo 951cc motors modified to max but not to affect reliability
Milled and Speced heads for Compression Bump
Ported engine Block Housings
Ported intake ports
Jetted Twin Mikuni Carbs w/ Annular accelerator Squirters
No choke or primers needed
Colder NGK plugs for high compression
Runs on 93 pump gas
Twin Electric High Flow fuel pumps for no fuel starvation on hard turns or manuavers
Opened up Exhaust exits thru haul
Reeds adjusted and cleaned
Individual MPEG ECUs
Tuned for additional fuel and engine mods
Custom Fabricated Engine Mount Rails made of stainless steel
Uses stock engine mounts
Engines Leveled for proper driveshaft alignment
Custom Hardened Driveshafts
New Dual Jet Pumps from a 2002RXDI
Dual Trim Nozzle system from seadoo RXDI jetski with Indicator gauge
Both Jetpumps have stainless steel liner wear rings (not cheap plastic or rubber)
Dual Slolas Turbine Props
Custom Fabricated Rear 23"aluminum ride plate to keep boat from flipping on hole shot acceleration(makes boat safe)
The amount of money and work put in to this boat is outrageous. WARNING, THIS BOAT IS NOT A TOY. NOT FOR BEGINNERS.
From Factory this boat brings twin rotax 650cc engines 90hp each and goes a max of 45mph on smooth water and just a driver.
This boat now does 82mph GPS without the rideplate bolted to back. With full tank and 3 passengers, gear, and plate bolted it does 76mph as it is now. I had this boat built because the 95 speedster is the only model year with a single water suction inlet for both jet props which make it faster than 96-up dual inlets. I wanted a boat that could pull skiers up within 3 seconds and be able to pull anything. The thing that makes it fun as hell is that its a perfect sleeper. Every person with a new modern jet boat or jetski that see this thing assume old 90's 2 stroke that tops out at 40-45mph.
I love the look on peoples faces when I pull up next to their turbo jetski and blow their as... away. They all stay surprised and tell me that things a beast. No joke. This boat is built to perform and is reliable. I take it out almost every weekend and travel far with it. Usually Eliot Key after i get bored of key biscayne. Its been 20 miles out with no problem. Starts everytime with both programmed keys to start each engine. Turns on a dime. Does awesome submarine moves, jumps, and doughnuts. Engines are very loud on full throttle. Each engine is putting out 225hp turning at 8,000rpms. The boat just bites out of water on acceleration. It freaks the cr_p out of my wife. Its light weight so thats why it can do what it does.
All motor fabrication swap is like factory secured and function. It all looks like it came from the factory like that. NO SHORT CUTS.
Just passing this along, its not mine but I wished it was. I'm researching the changes to increase my 53mph GPS boat along. Good luck
