650sx

  1. "Holeshot"_Howie

    650/X-2 Kawasaki 650sx Restoration Project

    Hello All. In May of 2022, I got tired of staring at photos on my dad's garage wall of him and his boys riding their Superjets, Fx1s and 650s way back in the 90s, way before I was born. After a couple of months of restless searching and nagging from my dad that I shouldn't settle for a Kawasaki...
  2. B

    Kawasaki 1100cc swapped 650sx

    Selling my custom triple 1100cc swapped Kawasaki 650sx! It has a lot done to it, the hull was shortened 6 inches, the hood was shaved along with part of the hall to match the hood. Tray was widened with custom fiberglass foot holds, The front of the ski was rounded, reinforced and the...
  3. B

    650/X-2 Sold—-1986 To 1996 SBT Kawasaki 650 SX top end rebuild kit $275

    Brand-new never used SBT 650sx top end rebuild kit. Asking $275 located in menifee CA
  4. Joemelia09

    Kawasaki 650sx SOLD

    1990 Kawasaki 650sx 750 motor with wiseco pistons ported and polished with ada head 93 fuel. Ocean pro aluminum bed plate with guki motor mounts. V force 3 reeds, mariner dual intake, dual Novi 48 carbs, prok filters. Factory pipe with Westcoast waterbox. 750 electronics, MSD enhancer, MSD...
  5. Rollin24

    650SX issues running

    My 650, which has had a multitude of different issues is now having two issues that are particular troublesome. 1. My ebox and starter have been replaced with new parts so I don’t think the problem is due to rust or wear. Anyway, clicking the green ignition button on the ski works just fine (a...
  6. G

    X2 bogging at high rpm

    Sorry to post in general theres someone who wants to come buy it but for some reason its bogging at high rpm.Litterly just rode it and then I tried to start it up right after just to get the saltwater out and wouldn't start so I took the carb apart cleaned it but I'm waiting on the overflow...
  7. pgriskonis

    Looking for the perfect upgrade?

    Hey guys, I'm almost 21 now and have been riding my ole reliable 650sx for about 7 years now. I've ridden flat water and surf style riding on it for years and feel like I outgrew the boat. I'm able to afford something nice finally with a better job and was thinking to skip out on the superjet...
  8. pgriskonis

    1991 Kawasaki 650sx

    LOCATED: Chicago, IL I just copy and pasted this from my craigslist post, if you have any questions, just ask :) I’m selling a 1991 Kawasaki 650sx stand up jet ski. This jet ski is super clean for a 91’ and has no issues with it, both cylinders are at 155psi even which is very healthy. You can...
  9. S

    Compression test

    So I have been using my friends and other people’s compression testers to test compression on various jet skis over the years but I always end up getting wrong or messed up compression numbers so can one of you guys please explain to me how to do a compression test I now own my own and I would...
  10. S

    650sx compression problems

    So while trying to sell my 650sx this guy came and when he tested the compression it read 90 each cylinder. The weird part is the ski starts right up still has lots of power (for a 650) never had any issues. So could it be a bad tester? Cause I’m assuming with 90 compression it would hardly even...
  11. CallmeTIMMY

    Standup vinyl

    Hello all, I’m currently in the process of building two skis and just finished installing some footholds. I was in a mental debate of spray painting it or installing some vinyl. My friends dad offered to hook me up with vinyl however I need the dimensions of them. If anyone by any chance has...
  12. Z

    Kawasaki x2 cooling question

    Whats up guys, quick question. Where should my main cooling line be connected to on my westcoast header on my Kawasaki X2 650? There are three places to hook up to on the header, two brass fittings on either side and a plugged one in the middle. One of the brass fittings is already capped off...
  13. G

    650 Engine Question

    I fell while turning fairly sharp on my 650sx, and got water in the engine, then proceeded to grenade the engine. Is there any reason why the water would've gotten in it?
  14. G

    ISO 650SX Head

    I'm in search of a 650sx head, stock or aftermarket.
  15. P

    Molding hull from scratch - looking for fiberglass info

    Hi, What would be the best fiberclass cloth/mat for molding a hull from scratch? Since there is lots of different fiberglass types, I need help choosing. (Weaves, density, ...) I am planning on using vinylester resin and my plug will be made of wood. Thank for your help
  16. P

    BRP 800 ETEC in jetski

    Is there anyone who ever put a 800 etec (150 HP) into a jetski? If not, why? I'm working on a project and have to choose between the 900 ACE HO or the 800 Etec. Thank you
  17. P

    650sx flat deck vs side wall deck

    Hi, I am wondering what would be the pros and cons of flat deck vs regular deck for a 1987 650 sx rebuilt project. Thank you
  18. cr5001986

    650sx water lines

    I think have found my bogging issue, too much water in the exhaust, Do i have the lines hooked up correctly? The line off of the pump goes into exhaust manifold, i have a tee off of the head one line running to the fitting on the headpipe near the bolts, one running to back of pipe and a line...
  19. K

    Engine not running right

    So i recently purchased a 1987 kawasaki 650sx. I put it on the water and it runs fine until i jump on it, and start riding it. Then it bogs right down and acts like its running on one cylinder. I have no idea where to even start since this is my first jet ski. Any ideas??
  20. Joe Dart

    what's it worth?

    So I'm putting a 701 yamaha engine into my 650sx. I purchased the Rahass mounts and pulled the 701 out of my wetjet. I would like to sell the 650sx engine with all the electronics, exhaust and intake to someone want to swap it into a 550. Of course all the bolts, motor mounts exc will go with...
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