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  1. Replies
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    Retainer vs. Springs with Retainer ?

    hello,

    whats the benefits of Retainer vs. Springs with Retainer ?

    rpm target 8650....

    PS: supertech doesnt sell just retainer just the kit with springs anybony know why ?
  2. did u run an 17LBS wheel or even bigger ? did you...

    did u run an 17LBS wheel or even bigger ? did you feel a strong difference between stock wheel and an RIVA wheel.... ? what rpm are you spinning with stage 3 vs stage 2 ?
  3. Thread: Ijsba wf 2020

    by FAMT
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    Ijsba wf 2020

    canceled ? any news ?
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    a new GP will come for 2021 and i am not talking...

    a new GP will come for 2021 and i am not talking aboud colors/grafics
  5. Well....as the top of the line performance skis...

    Well....as the top of the line performance skis they are all limited to 68/69 mph so the tuning add 9 mph is this firt stage because of removing this limiter and ads performance.... so without the...
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    New 4 Stroke Standup and and new GP will come in...

    New 4 Stroke Standup and and new GP will come in 2021 so it will be great
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    well when the impeller is installed since years i...

    well when the impeller is installed since years i gues you cant do anything....
    i run only solas impellers in kawasaki seadoos and yamahas and never broke one.... maybe you got an chinese knock...
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    Problem with SX-R 800 when long WOT

    Hi,

    after running like 30 secs wot and close the throttle, and then accelerate the engine is not able to spin more 2500 rpm...
    after 5 minutes engine shut down time same thing...you can ride half...
  9. will check again everything

    will check again everything
  10. GP run Great all day now not not even Starts Video here

    Ski runs great all day long after an stop it is not possible to start, Batterie connections great, no fault codes Batterie is full, no error codes https://youtu.be/pHiiiixrXCc
  11. Well on my 2013 Ultra 300 i did this Mods ...

    Well on my 2013 Ultra 300 i did this Mods

    Solas 14/21
    Riva Air Filter
    R&D R2 ECU Reflash
    R&D Sponsons
    R&D deep Fuel Pickup
    R&D Filters for the Catch Can
    R&D Intake Grate
    R&D Pump Wedge
  12. some sec`s.... just repitch that prop yor target...

    some sec`s.... just repitch that prop yor target should - as i said without light valves max. 8.800 rpm....
  13. Thats my Experience with my EX 300 RXP back in...

    Thats my Experience with my EX 300 RXP back in 2016

    70 F Temp
    Cold Water
    TGasTank 2 Bars and trim up
    Flat Water

    129 km/h at 8550 RPM GPS

    PS: i didnt used an Stock depitched Prop i dont...
  14. you can reach 80 mp/h - 130 Km/h with just an...

    you can reach 80 mp/h - 130 Km/h with just an reflash, air Filter and Retainers with 8500 -8600 rpm....

    you will need light valves as well for everything over 8800 rpm

    depitch that Impeller...
  15. Color Code for 2020 Yamaha GP1800 BLue Hull ?

    hello,

    did yome one know the Color Code for an 2020 Yamaha GP1800 Blue Hull ?
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    tuning yamahs skis since 10 years removed and...

    tuning yamahs skis since 10 years removed and install countless impellers...never broke any tool...

    just heat the impeller up takes some time use a torch...very easy to do
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    The SC Shaft is a 2 Piece construction.... so...

    The SC Shaft is a 2 Piece construction.... so when the wheel spins on the Shaft it feels like a Boost Leak...
    You can Upgrate for the Riva 1 Piece Shaft....expensice i know but save..... when the...
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    I did reseal the transom plate and now it about...

    I did reseal the transom plate and now it about 85% less water in the Hull....but anyway there is still a little bit water comming from the back on the Waterbox side...

    any ideas left over for me...
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    The Valve is not in the Tank it is between the...

    The Valve is not in the Tank it is between the Filler Hose and the Tank. I took it out, now you can fill up with full power
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    R&D is out of Business since late 2018.. maybe...

    R&D is out of Business since late 2018.. maybe you find a used obe but just buy the worx or Riva Grate....
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    well... the 2020 models are reinforced in the...

    well... the 2020 models are reinforced in the intake Grate area so i think that this problem is solved since 2019...
    2017&2018 Skis does have this Problem....

    But anyway yes i wastet weeks so to...
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    just the tubes from inside.. i will do the camara...

    just the tubes from inside.. i will do the camara thing... i gues that is the only way to find out...
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    i reseal the tubes from the transom plate, checkt...

    i reseal the tubes from the transom plate, checkt all hose clamps, all hoses, all fittings, all screws, through hull fitting for dedicated water line, exhaust gaskets... all good... cant find the...
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    Hull cracks were on 2017 & 2018 Models due the...

    Hull cracks were on 2017 & 2018 Models due the intake grate brackets/Hull combination.... it is fix since 2019
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    GP 1800 rough travel on rough waters ?

    hi guys...

    i am riding an gp1800 2020 stage 2 at the moment and thinking..... maybe it is not the right ski for rough waters ..what did u think...

    i know an fx or rxtx300 would be the right...
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