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  1. Replies
    10
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    502

    Agreed, first step to decide on is which...

    Agreed, first step to decide on is which direction you want to go with tune. There are tons of threads on the topic. Mods are really nothing to explore without a tune as the machines are limited at...
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    6
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    570

    They have been out and matter of fact I one...

    They have been out and matter of fact I one installed in my fx but the weather has been not good over here.


    https://www.4-tecperformance.com/images/new%202021%20clutch.JPG
    2021 Yamaha OEM...
  3. Replies
    21
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    1,006

    Jut do the 8,000 rpm tune. that will unlock some...

    Jut do the 8,000 rpm tune. that will unlock some speed and rpm but keep yamaha happy
  4. Replies
    9
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    504

    My current ski svho is coated from factory. my...

    My current ski svho is coated from factory.

    my 2009 SHO was raw aluminum. And I got bored one day and used up some drimel polishing pads, and some aluminum polish from my bike. It tuned out ok....
  5. will share every experience in my build hope it...

    will share every experience in my build hope it helps you buddy O:)

    inside pipe is 2.5 inch and the outer water jacket is 3 inches

    water from intercooler outlet to exhaust water jacket and goes...
  6. WTB There has been a pattern recently of new members...

    There has been a pattern recently of new members with very few or zero posts, sending a private message to someone looking for a part, pointing to an email address.

    These are scam messages, they...
  7. Come on mate no need to start a Yam Vs Seadoo...

    Come on mate no need to start a Yam Vs Seadoo debate, both very good skis and we should just enjoy having manufactures who give us something we all enjoy so much.

    also I took this photo on the...
  8. Jerry, does Greg plan on flashing the GP back to...

    Jerry, does Greg plan on flashing the GP back to stock to conduct a same day comparison between the two skis? Would be best to negate the effect of any differences in temperature, humidity and air...
  9. We will see soon how the 2021 RXP-X compares to...

    We will see soon how the 2021 RXP-X compares to the 2021 GP, my Sea Doo is on order. We will be doing real world testing using a FULL tank of fuel in both skis and will post accurate results from...
  10. WTB - Parts Awesome, glad to hear.

    Awesome, glad to hear.
  11. Very impressive speeds, especially considering...

    Very impressive speeds, especially considering the stock, high-drag grate. What were the actual RPMs during those two pulls?

    it would also be very interesting to see how the Stage 1 with the...
  12. Replies
    36
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    4,800

    30 lb, Cams, Ethanol, and Compression.Older hulls...

    30 lb, Cams, Ethanol, and Compression.Older hulls have alot more surface tension and need alot more motor to run your same kind of speeds.What I meant was actually the opposite of what I think you...
  13. Replies
    36
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    4,800

    A ski going this speed in 80's air and Florida...

    A ski going this speed in 80's air and Florida humidity is a solid 95 mph ski in dry winters air.We have an old style FX with alot more motor running similar speeds but it has to turn a 13/20 through...
  14. Replies
    36
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    4,800

    I really think the extra speed is mainly in the...

    I really think the extra speed is mainly in the hull design.Unlike previous FX's the V the new one is much shallower and there are lifting strakes next to the grate which keep the rear of the ski...
  15. Thank you for sharing.Unfortunately we use to run...

    Thank you for sharing.Unfortunately we use to run similar short ram intakes many years ago and its not even close in comparison.Both of the setups I previously mentioned outperform it by 200 to 250...
  16. Ordered 2021 gp 1800 with audio blue no trailer...

    Ordered 2021 gp 1800 with audio blue no trailer 16, 800 out the door $ 150 delivery, going straight to
    shop for stage 3 wish me luck hoping for 87 mph
  17. pesky misleading manual

    pesky misleading manual
  18. Replies
    37
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    4,336

    Best bet is to go turbo, you aint going to get...

    Best bet is to go turbo, you aint going to get that reliability or speed on a seadoo. This is either user error somewhow or something is the common denominator that is causing the failures.

    If...
  19. Replies
    37
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    4,336

    OEM is handling what it's designed to do. If...

    OEM is handling what it's designed to do. If aftermarket can't keep up, you may need to ask what you're really trying to accomplish. Anyone running over 94MPH is not recreationally riding their ski,...
  20. Replies
    37
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    4,336

    i dunno maybe its just me...but i dont see how...

    i dunno maybe its just me...but i dont see how you can blame yamaha for you running a machine at over 90 mph and 9000rpm.....Clearly they didnt intend people to try and make it a space ship.

    this...
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    496

    I didn't know...I've been off the forum a while...

    I didn't know...I've been off the forum a while pursuing my new motorcycle hobby. Tommy was a true gentleman, he will be truly missed.
  22. Thank you thank you thank you!!! My SVHO issues resolved!

    Huge THANK YOU to all those who offered advice and things to check on my SVHO with rough idle, killing, acceleration hesitation and reduced top speed issues. It ended up being a dislodged exhaust...
  23. 3500 is fine. I saw some guys at the launch this...

    3500 is fine. I saw some guys at the launch this weekend picking their SVHO's up revving them repeatedly full throttle.... hitting the limiter. I walked over and told them, "guys this is not...
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    4,541

    Even when you show people there are always...

    Even when you show people there are always naysayers.If people dont know how to do something then it must not be possible.All I can say is to come to Florida and you will leave a believer.A 600 hp...
  25. You answered you own question.. If your not going...

    You answered you own question.. If your not going to invest in a tune no reason to do the L13 imo
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