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  1. #1
    mjh3ides's Avatar
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    Something a little different for this forum...2011 Superjet build

    I'd been mulling over one of these for awhile, & when I saw the 2012's were gonna be for "competition use only", meaning you can't register them, I went ahead & bought the ski at the end of last year. The thing has been an absolute blast & also a big challenge. Besides the challenge of learning how to ride it, the build kinda reminded me of when I first bought my GPR & found this forum...so much to learn about a machine I didn't know much about. After spending lots of time reading on X-H2O, I had a basic idea of the mods I wanted & went straight from the sales office at Riva to the parts desk.
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  2. #2
    mjh3ides's Avatar
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    Before starting the bulk of the build I wanted to learn to ride a little better, so I left it nearly stock for awhile. The first things I did were the Riva grate & ride plate. Both those mods really helped make it a lot more stable & easier to learn on. The Riva plate is much longer than the stocker, so for a big heavy rider like me it made a world of difference. Eventually I'll want to loosen it up a bit with a shorter plate so it's easier to throw around, but for now I'm keeping the training wheels on. Next was the steering setup. I installed a Wamilton's shortened turn plate, which moves the steering assembly further forward a couple inches, along with the UMI mount/bearing kit, Riva 0 degree bars, ODI grips, Protec nozzle & UMI throttle. These mods also helped a lot for someone my size because it gave me more room in the tray without being cramped into the bars. The one problem I ran into is the steering cable on the '08+ SJ's have a real short throw, so with the aftermarket turn plate installed the cable would bottom out before reaching the stop when turning left. I eventually resolved this with an aftermarket cable from TS Innovations that I found advertised on the X.
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    Last edited by mjh3ides; 09-24-2012 at 12:34 PM.

  3. #3
    mjh3ides's Avatar
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    Then it came time to dive in & do the power adders. Here it is all stripped down:
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  4. #4
    mjh3ides's Avatar
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    The first thing to go in were the bilges. Stock, the ski only has a siphon system, so I upgraded using dual 500GPH Rules installed using the mounting bracket Blowsion makes, which bolts up to the intermediate housing. I used Riva's bilge kit that comes with the pump, military grade switch, 3/4" bypass & switch mounting bracket. I just had to buy an extra pisser & pump to complete the dual setup. I decided not to use their billet handlebar mount for the switch because it looked liked something that would hurt me at some point, so I drilled a hole in the handlebar stop & routed the switch wire through it, then glued the switch to the bottom of the pole. I wired my pumps with separate fuses for redundancy, so if one goes down it doesn't take the other pump with it. I wanted to make it easy to swap out pumps, so I used a weatherpack connector on the hot leads. This way I can easily remove the pumps to install new ones without having to mess with the rest of the wiring that goes forward to the switch & battery.
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  5. #5
    mjh3ides's Avatar
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    Now for some billet porn. ADA head with girdle kit & 35cc(185psi) domes.
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  6. #6
    mjh3ides's Avatar
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    Wamilton did some porting on the Factory Pipe manifold & head pipe form me. I forgot to snap a pic of the head pipe, but he port matched that to the manifold & smoothed out the seam inside the pipe where it was welded. Also, the manifold was tapped for dual cooling.
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    Last edited by mjh3ides; 09-23-2012 at 01:48 PM.

  7. #7
    mjh3ides's Avatar
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    Wamilton did a little magic on the intake side as well for me. He opened up the ports on the manifold so they are more square. He told me this not only helps airflow but will help my CF reeds last longer by evening the pressure across the petals. You can see the original shape of the ports in the pic where I put the gasket over half the manifold. Obviously, the gasket also needed to be shaved to the same size as the ports. Then he roughed up the intake tract below the carbs, which is supposed to help keep the fuel atomized. It was finished off with VF2 reeds. At the same time, I left my carbs with him to have the tamper caps cut off & rejetted. Since I removed my choke & fuel petcock to use the holes for bilge fittings, I went ahead & removed the choke plates from the carbs. Not sure if it makes much of a difference, but it couldn't hurt. Not to mention, if it's cold enough that I need a choke to start the ski, I'm riding something with a seat. I filled the holes for the shafts with epoxy & sanded it flush. I also rerouted the fuel lines to eliminate the petcock & just ran a single line off the reserve pickup.
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  8. #8
    Almost's Avatar
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    Very cool, I always wanted a stand up but all my money keeps going into the GPR.

  9. #9
    mjh3ides's Avatar
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    For now I'm still using the stock pump with a repitched stock prop. The only change I made was to swap the stock cone for Wamilton's stubby cone. The small cone gave it a lot more pop on the bottom end, but I'm not sure how well this setup will work once I start taking the ski into the surf. I have a Skat swirl prop to try if I need a little more hookup when the time comes. Yamaha molds a boss into the pump on the left side, which I tapped for an additional cooling line for the dual cooling setup. I used the fitting that's already in place for the siphon bilge to route the extra line to the motor. Since I wasn't using the siphon, I went ahead & removed the tube from the venturi & filled the holes for that & the gay spray with epoxy & sanded them flush.
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  10. #10
    r33pwrd's Avatar
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    Something a little different for this forum...2011 Superjet build

    If you don't mind me asking... What are your stats? Height and weight? I have been shopping for an Sxr purely because I'm fat

    Nice build!

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