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  1. Replies
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    75

    Who made R&D ride plates & Scoop grates ?

    Did R&D have their own metal casting equipment or did they get an outside contractor to make them ? I believe thereís still demand for these parts that isnít being met .
  2. As Mudslanger said , its a money pit for the...

    As Mudslanger said , its a money pit for the inexperienced . Parts are getting hard to find , R&D made the best intake grates and Rideplates for the GPR and they retired from the business making R&D...
  3. Sticky: Well it’s 2020 and here in Australia ���� there’s...

    Well it’s 2020 and here in Australia ���� there’s lots of blokes buying a GP1200R or a GP1300R and rebuilding them . I’ve helped quite a few and they are happy with a $3000 au ski vs a $25000 au...
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    1,022

    You could use the 85mm exit nozzle instead of the...

    You could use the 85mm exit nozzle instead of the 87mm for more speed before changing the impeller.
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    2,528

    The Oside Bill recipe works , these guys spent...

    The Oside Bill recipe works , these guys spent years getting it right with testing. Why question their experience? This engine format has not changed . Follow the recipe and the cakes turn out...
  6. Ryan what sort of riding do you do with your GPR...

    Ryan what sort of riding do you do with your GPR ? What fuel are you willing to pay for ? I have a set of Factory Pipes that gave me 77mph first time out with zero tuning time . The problem is you...
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    1,149

    Pm sent

    Pm sent
  8. Its not the valve hitting the piston , its the...

    Its not the valve hitting the piston , its the pin in the ring groove coming lose and allowing the ring to spin and catch in the exhaust port . Yamaha pistons are known for this .
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    2-Stroke Love the idea of filling in the under rail gap at...

    Love the idea of filling in the under rail gap at the rear of the ski ! This area causes heaps of drag when first taking off . I’m going to do the same .
  10. It’s toast , the con rod may have broken or the...

    It’s toast , the con rod may have broken or the piston has broken and punched its way out to daylight. Both halves of the crankcase are severely damaged and probably the cylinder too . Best option...
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    1,805

    The engine has forged Wiseco pistons too and egt...

    The engine has forged Wiseco pistons too and egt probes , happy days .
  12. Replies
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    6,859

    Cant read any meaningful information from the...

    Cant read any meaningful information from the picture mate . Must be why the GP1800 has won so many races ,its so slow . :)
  13. Thread: GP1300r 05 pipe

    by Adam
    Replies
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    1,127

    Picked up bottom end punch and 100rpms , going to...

    Picked up bottom end punch and 100rpms , going to get some GPS speed numbers tomorrow as today was really rough water on the lake .
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    584

    When guys were trying everything to go faster it...

    When guys were trying everything to go faster it was worth it . But now the new Supercharged Yamaha’s go much faster so why bother compromising your reliability when you still won’t go as fast as a...
  15. Yamaha GP1800 wins in the Ocean ! WOW

    Yamaha GP1800 wins in the Ocean ! WOW
  16. Replies
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    1,236

    Plug leads will do this , have they ever been...

    Plug leads will do this , have they ever been replaced ?
  17. Replies
    25
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    6,191

    Yeah Ive seen what Islam does on PWC , gets...

    Yeah Ive seen what Islam does on PWC , gets everyone banned from Sydney Harbour and massive licence and rego increases . Fuck them .
  18. Looks like a VXR to me with a supercharged motor...

    Looks like a VXR to me with a supercharged motor and the RIDE system , it maybe fast but it looks terribly like a VXR ! No wonder guys are still putting the SVHO engine in GPR hulls ! At least...
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    2,834

    All the powervalve experts got it wrong , no oil...

    All the powervalve experts got it wrong , no oil as you can see by the oil line coming off . Check your fuel pumps while you are at it or you will have more problems .Do the Oside Bill mods for long...
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    9,752

    When do you get it ? And how fast is this setup...

    When do you get it ? And how fast is this setup for ?
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    11,146

    I cant see how the rubber hose has negative...

    I cant see how the rubber hose has negative pressure and the pump tunnel just a few inches away has 50 psi ! Physics doesn't work here , I don't believe that pressure alone is responsible. The...
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    It would be a worthwhile thing to do if you sell...

    It would be a worthwhile thing to do if you sell the raider and fix the GPR ,especially at $300 .
    I purchased my GPR cheap and rebuilt the engine , cheap 70 mph ski consisdering the cost of a new...
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    2,210

    There is a 300mtr exclusion zone around all...

    There is a 300mtr exclusion zone around all whales in NSW . PWC are prohibited for use as Whale watching vessels , the Media would put more pressure on us all Politically . Its a shame but its true .
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    Be careful mate , the media will shit all over...

    Be careful mate , the media will shit all over PWC owners in NSW if this becomes public . You know its true .
  25. Thread: GPR project

    by Adam
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    0
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    282

    GPR project

    Ive just bought a nice clean GPR minus the engine. Sourced an engine and 14 vane setback Magnum pump. The build begins ! :)
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