Here's the broad strokes E, if you're not good with fiber glassing, you will be when you're done!
The pics I posted are of the 650/X2 pump conversion. The green is what you’ll be grinding to make it fit. While you can do it without cutting open the tray , it’s usually best to open the tray, replace the water logged foam, the rotted water lines etc. , and build up the thickness of the pump tunnel prior to grinding to fit the pump.
Yes sir, stock SXR 800, set back 3mm. I tried a bunch of different props, solas and skats, whatever the flavor of the day was at the time (concords , skat swirls, different hub sizes) and pretty much always came back to the stocker SXR. Worked best for all around riding, surf , ripping across the bay, creeks. Seemed to me to be a higher quality prop, material wise.
Sorry, No stock pump for me. I have been running a 144mm ,1" setback mag (Skat-Trak) for years. The prop ended up being a 16*/20* with my motor. The reduction nozzle is a Pro-Tek blaster max flow nozzle (un-machined bore diameter), with a Kawi X-2 trim nozzle setup. A must have. I actually alternate between 2 different stator sections, 12v alum & a 14V ti.
Q1- Correct, the stock SXR800 impeller will not fit into a stock FX-1 122mm pump? A SXR pump is 140mm
Kawasaki 650-800 standup pumps are all 140mm. The FX1 was designed right before Kawasaki introduced their 750. At that moment in time, 550s were the dominant race boats. Most of those guys used 440 pumps with high rpm 550s. In 1991 the FX1 was an effort to upgrade the state of the art. In 1992 Kawasakis 750 made everything before it obsolete. The Superjet was around but it took a couple of years before Tubbies turned it into the winning race boat. Superjets always made better thrust and once everyone discovered they could roll one it became megapopular.
