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A friend of mine has a 94 550sx, westcoast head, half pipe and mariner water box. Ran pretty good last year. He swamped it last summer and it hasnt run right ever since. We took it out today, gave it a good carb cleaning, played with the highs and lows since we have no clue where they were...

Im still trying to decide on the best prop for my build. I have a 300sx, 140mm kawi pump, and a jetmaniac ported 718 motor with a facotry b pipe. Shooting for 260lbs ready to ride. I only have seen one 701 in a 750sx, but the weight difference will be pretty substantial between the 2 builds...

So its been some time since I have been on here to update my 300 sx build. I did some searching and see that the 300sx bandwagon really grew since I joined. I have been reading through the posts and really see some great stuff, very motivational, and informative (If I could only go back and...

Im building a 300sx with a kawasaki 750 pump swap, ported yamaha 718 from jetmaniac, ADA head, B pipe etc. Im up in the air about a prop. I have no clue whats going to work or where to start. I figured I would post over here and see what suggestions I get.

Im going to pick up a 300 sx hull tomorrow. Time for a new build. I promise this one wont take as long as my 951sx took. Im leaning towards a yamaha motor. At first I really was set on a 66E. Lack of conversion parts is making that my last choice. 760? I thought bigger was better...

So before I start buying parts for my next build I was wondering if someone could verify that the 66e can fit in a 300sx hull? Im thinking of a setback mag pump, re shaped nose / pole mount area, superjet or RRP pole with the bracket all the way up front, shaved front bumper rail, big...

Im in need of a set of filters to fit my buckshot 50s. I need something really short, my buckshot carbon filters were almost 3 inches tall and rubbed the side of the boat and they fell apart on me. The only thing I could find that was really short was a Tau Ceti. I found all the info I...

Im doing a bunch of glasswork on my sx, and I have some 3/4 inch foam I was thinking of making sponsons with and glassing over them. I could cut the rough shape, glue them on the sides then shape them further by sanding and finally glass over them and smooth and paint. Is there a science to...

well, I finally got the motor here. It took a little trimming of the pipe to get it all in there- but it fits. Im going to have a hard time getting a gas tank in there, and moving the battery to the other side, and building a new waterbox to keep it friendly for the lake. Other mods coming...

So Im wondering how possible it is to wire a stock 750sx e-box to a different engine, like ummm lets say a sea doo 951 using the sea-doo stator and pickup, and if someone knew what was what as far as the wiring went could this be done?

Im planning on swapping to a 951 over the winter, I figured if it works in the SXR why not my SX? I have a ton of un-answered questions and Im sure there are others out there contemplating doing this one too. maybe we can get some help here from someone who has done it already and make this an...

Im beginning to think I may be stuck with my 750 sx for another year, I swore if I kept it another year I would do something outrageous this winter. I see the 951 being swapped into sxrs, and I know about the carbs being low mounted and not being ideal for freestyle, but with some work the...

Im in the process of getting out of my 750 sx and into a rn superjet. I want big power for flatwater tricks and wake jumping. I was thinking of starting to build an engine while I wait to get my new ski. Im a little confused about all the engines. I know there are 2 versions of the...

I have a JS 300 and just for fun -and to have a backup ski Im debating swapping in a 650 from an x2. What will I need to make it happen that wont be on either ski? Both are perfectly running skis, the x2 is my friends and hes been trying to sell it, If this swap happens there will be a nice x2...

Yesterday was my first time riding a standup and my arms hurt like hell. Hopefully this gets better with time? I have 2 questions about my 750sx now that I got to ride it: 1 the back end dosent seem to want to stay in the water, the nose feels like it is heavy and it keeps losing traction...

I just got it today and it already as some reasonable mods. bilge, prop, intake grate, ride plate, one way valve, reeds, flame arrestor, primer, intake manifold, oil injection blockoff. Im happy with it, for its age it looks great and well maintained, it is my first standup and I havent even...

Im doing this for a friend, I believe it is a 1993 KX250, it has been sitting in my garage since I moved. He is interested in getting a jet ski, possibly up for trade? A little dusty in this pic, again it has been sitting in the same spot for the past 2 years.