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  1. Good walk around videos of some of the new 2020 Sea Doo Skis

    Our friend Tim McKercher took some time to make a good walk around video for us showing us the new 2020 Sea Doo skis. Thank you Tim!

    RXT-X 300

    https://youtu.be/yPUqEdbn8mg

    GTI
    ...
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    That rubber hose mounts to a fitting on the...

    That rubber hose mounts to a fitting on the transom plate. Remove the hose from the transom plate and then block off the fitting with a rubber cap. You can get vacuum caps at any auto parts store....
  3. Sticky: yes my mistake. The 120,000 rpm figure is what...

    yes my mistake. The 120,000 rpm figure is what the 300 supercharger bearings are rated at.
    a 300 Engine spinning 8800 rpm has a supercharger spinning 51,500 RPM
    at 9000 RPM the supercharger is...
  4. Sticky: this vibration people refer to is actually...

    this vibration people refer to is actually compressor surge. Balancing the wheel to the shaft doesn’t rectify this. Using a good BOV reduces the amount of compressor surge (flutter)
  5. Sticky: if you look closely at the clutch end of the 300...

    if you look closely at the clutch end of the 300 supercharger you will see the supercharger has grind marks they use to balance it. You won’t see such marks on the 185/215/255/260 superchargers.
    ...
  6. Sticky: View Post

    These superchargers are called “maintenance free” by Seadoo so Sea Doo doesn’t offer rebuild parts for them. Fortunately our friends at Rotax Racing provides a kit and that kit is available right...
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    Sea Doo Seal Shield

    The Seal Shield (patent pending) is for all 2018+ Sea-Doo PWC models with ST3 hull.



    https://www.4-tecperformance.com/images/sealshied.jpg
    Sea Doo Seal Shield

    ...
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    Isa, that's because his valve lash was not...

    Isa, that's because his valve lash was not shimmed properly. It doesn't matter which brand retainers you use, if you do not shim the valves properly you will break retainers. The fastest skis in the...
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    1,326

    On the Riva kits not meeting expectations. There...

    On the Riva kits not meeting expectations. There are MANY variables. Elevation and temperature plays huge a huge role in a skis performance. A ski at 1000' elevation isn't going to make the power a...
  10. I have not heard of that one, or heard of anyone...

    I have not heard of that one, or heard of anyone using it, but the CandooPro diagnostic system for Yamaha is top notch and has the best customer service in the industry. Can't go wrong with CandooPro...
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    1,436

    I would upgrade the superchargers shaft for...

    I would upgrade the superchargers shaft for anything more than 8800 RPM.
  12. Replies
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    1,436

    Stock valvetrain is safe to 8700 RPM. RIVA...

    Stock valvetrain is safe to 8700 RPM.
    RIVA retainers safely get you to 9500.... some people even go higher. I always recommend if you plan to turn 9500 or more then you want to do both the springs...
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    Guys, I just heard back from my contact with...

    Guys, I just heard back from my contact with Yamaha. If you measure across the back of the pump where the venturi nozzle mounts up you will see that it's 160mm. Older pumps were 155, and their 2020...
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    new spark plugs will likely solve your issue ;)

    new spark plugs will likely solve your issue ;)
  15. They arent! they are ductile iron bores. It's the...

    They arent! they are ductile iron bores. It's the 300 engines that are Plasma coated and they are terrible!!
  16. Here's the issue that CR has seen with clutches...

    Here's the issue that CR has seen with clutches that have failed.....

    People didn't follow instructions, or were not provided with proper instructions when the clutch was sold to them. The...
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    HKS is not a good blow off valve. It's not near...

    HKS is not a good blow off valve. It's not near big enough to release boost pressure quickly enough. TiAL and Turbosmart are both 50mm BOV's
  18. If they have never been rebuilt then I would...

    If they have never been rebuilt then I would absolutely rebuild them. You run high risk of a bearing failure.
  19. Sea Doo 230 and 300 maintenance free superchargers explained

    For those of you with 230 and 300 skis with the “Maintenance Free” superchargers. There seems to be some confusion, I see this a lot, people confuse “maintenance free” with “it lasts forever”

    ...
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    Buy the cluster from the GreenHulk store. In the...

    Buy the cluster from the GreenHulk store. In the comments box leave a note saying you need to flash the cluster with the software prior to sending it and I will get it done for you.

    Parts for the...
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    You have the retainers so just raise the limiter.

    You have the retainers so just raise the limiter.
  22. Sticky: Performance Segment Starting at $12,399* Click...

    Performance Segment
    Starting at $12,399*
    Click to EXPLORE BUILD
    ...
  23. Sticky: My riding impression of the new 2020 Sea Doo GTI and GTR skis

    I had the privilege of being invited by Sea Doo to fly out to Lake Travis Texas and ride their new 2020 GTI and GTR skis.
    It always amazes me at how much better Sea Doo makes their skis with every...
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    Your supercharger slip at 8 ft lbs is way low....

    Your supercharger slip at 8 ft lbs is way low. You will want to install these spring washers to get the slip up. Stack the washers like this )))()...
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    The flutter is compressor surge and it's normal...

    The flutter is compressor surge and it's normal for the high boost superchargers. It's not hurting anything.
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