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  1. #1

    Which model has the most potential?

    Ok guys donít rip into me too bad here, I did try a quick search but didnít come up with much of an answer. Long story short I currently have a 2013 Kawasaki 300x and while I do enjoy it, I want something I can make faster. It looks like Yamaha is the way to go for top speed with out dropping tons of money into mods. The plan we are throwing around right now is to give the kawi to my wife and sell hers. She likes the rough water handling it provides and is plenty happy with its acceleration and speed. If that happens Iím either going Seadoo or Yamaha. But it looks like the Yamahas have more potential so here I am. My problem is I donít know which model to go with

    we mostly ride in rivers so not perfectly flat water but not the ocean either. As long as it handles rough better than my 2007 RXP Iíll be happy. My goal would be acceleration and top speed. No towing tubes or anything. Rarely a passenger. We ride 2-3 times a week for 4-5 hours at a time. Is the GP1800 the right choice? Or?

  2. #2
    Click avatar for tech links/info K447's Avatar
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    We have a pair of 2017 GP1800. Stage 1 Plus tune with Solas impeller.

    Ride plate changed to the longer than stock Worx ride plate, with Jimís cut to improve tracking and handling. GP1800R intake grate. Some other small improvements for improved steering response and such.

    Overall configuration is optimized for moderately rough water composition rather than top speed.

    GP1800R can certainly carry speed through chop but we ride standing up with flexed legs most of the time, so the hull can dance underneath our feet without jolting the rider. If you prefer to sit down and go fast in rough water, the GP1800 will do it but your backside might feel it.

    I do not recall whether I have ridden a 2007 era RXP Seadoo, but I have ridden the 2014 era RXP. That RXP hull seems excellent at slicing through the waves/chop and can corner hard when the handlebar are really turned.

    The GP1800 hull is very different in handling. Rather than turning with the hull staying quite flat to the water like the 2014 RXP, the GP1800 wants to lean into the turn. Overall a rather different hull, top deck configuration and riding experience.

    The Yamaha 1.8 liter SVHO engine is excellent and easily upgraded for more power. We have well over 200 hours on each now.

    I will suggest you find some way to test ride a GP1800R.

    In completely stock form the GP1800R is quite good, but the full experience requires at least Stage 1 or Stage 1 Plus, if not Stage 2 configuration.

    Written descriptions may not provide what you need to select between Seadoo and Yamaha.


  3. #3
    Thanks for the input, it does help. My goal is going to be to get something I can slowly build up into a faster machine. The 300x is great in rough water but there’s not much potential to go over about 75. It looks like the Yamahas respond better to kids than the seadoos from what I can see. Right now I’m pretty set on the gp1800r. I’m not expecting rough water capabilities like my kawi but as long as it’s better in the rough than our RXP 215 that’ll be good enough for me. We prefer flatter days, but find ourselves in some rough stuff here and there on the Delaware river and the beginning of the Chesapeake bay.

  4. #4
    Quote Originally Posted by Adam4pt6 View Post
    Thanks for the input, it does help. My goal is going to be to get something I can slowly build up into a faster machine. The 300x is great in rough water but there’s not much potential to go over about 75. It looks like the Yamahas respond better to kids than the seadoos from what I can see. Right now I’m pretty set on the gp1800r. I’m not expecting rough water capabilities like my kawi but as long as it’s better in the rough than our RXP 215 that’ll be good enough for me. We prefer flatter days, but find ourselves in some rough stuff here and there on the Delaware river and the beginning of the Chesapeake bay.

    I had a 2004 RXP and 2008 RXPX. The GP1800 will be better than both in rough water based on my time owning a 2016 VXR which is the same hull.

    As far as rough chop ride I would say best to worst in my opinion

    2015 FX = 2010 RXTX > 2013 FZR > 2015 VXR > 2004 RXP > 2008 RXPX-255

    Cornering best to worst in my opinion

    2015 VXR = 2008 RXPx 255 > 2010 RXTX = 2015 FX > 2013 FZR = 2004 RXP


    I will be curious where my 2012 300x Ultra lands.
    Last edited by not2fast; 06-23-2020 at 10:36 PM.

  5. #5
    Let me know when you decide where the kawi lands. Right now I ride a 2013 300x and my wife rides the RXP215. We’ve also had a Honda r12x. For us I would order them as follows:

    Rough: 300x, RXP, R12x

    cornering: RXP, 300x

    if the gp1800 is at least a hair better in the rough than the rxp I’ll be happy.

    aa for your 300x, I’ve really enjoyed mine. We often ride rivers and it can vary from glass to some pretty good 3-4ft chop. If it’s smooth it’s a nice relaxed ride on the 300x, when it roughens up some is when the 300x shines, it seems the faster you go the better it handles the chop.

  6. #6
    Quote Originally Posted by Adam4pt6 View Post
    Let me know when you decide where the kawi lands. Right now I ride a 2013 300x and my wife rides the RXP215. We’ve also had a Honda r12x. For us I would order them as follows:

    Rough: 300x, RXP, R12x

    cornering: RXP, 300x

    if the gp1800 is at least a hair better in the rough than the rxp I’ll be happy.

    aa for your 300x, I’ve really enjoyed mine. We often ride rivers and it can vary from glass to some pretty good 3-4ft chop. If it’s smooth it’s a nice relaxed ride on the 300x, when it roughens up some is when the 300x shines, it seems the faster you go the better it handles the chop.

    You will like the GP1800 than. The hull is a lot of fun. I loved how it leaned. I had a ride plate and grate on my VXR would be about what a GP1800R has stock for handling, but with more power. I had a VXR, FZR, and FX all at the same time. The VXR was the slowest, but I found myself riding it the most. It was fun to turn on and was good at jumping waves.

    I am excited to play with the 300x over the holiday weekend. It will get its fair share of towing tubes though. The kids want to create waves with the boat and then get pulled over them by the Jet Ski.
    Last edited by not2fast; 06-23-2020 at 10:40 PM.

  7. #7
    Updated my list with my 2012 Kawasaki 300x in the list. I need some more time on it to really know how it turns, but the lake was very busy yesterday with 100+ boaters. It was chop city. The 300x really does great in that setting between the 20-50mph. I think it might be n par with my boat, but it really to compare.


    As far as rough chop ride I would say best to worst in my opinion

    2012 300x > 2015 FX = 2010 RXTX > 2013 FZR > 2015 VXR > 2004 RXP > 2008 RXPX-255

    Cornering best to worst in my opinion

    2015 VXR = 2008 RXPx 255 >> 2004 RXP 2010 > RXTX = 2015 FX > 2012 300x = 2013 FZR

    I have not owned some of these PWC's for years so it would be easier to compare them back to back. I did have the VXR/FX/FZR/RXP to do back to back on.


  8. #8
    if youíre looking to go fast I have a 2019 GP1800r and it can go 78 sometimes 80 and I just have a tune on it.

  9. #9
    dannyual777's Avatar
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    Quote Originally Posted by Kcboat82 View Post
    if you’re looking to go fast I have a 2019 GP1800r and it can go 78 sometimes 80 and I just have a tune on it.
    Kc, I just sent you a PM.

  10. #10
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Kcboat82 View Post
    ... 2019 GP1800r and it can go 78 sometimes 80 and I just have a tune on it.
    Is that GPS speed or the factory paddle wheel speed sensing?

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