Page 1 of 3 123 LastLast
Results 1 to 10 of 24
  1. #1

    2019 FX SVHO limited carrying 3 gas cans unstable at high speeds?

    I got a 2019 FX SVHO Limited and has been carrying an aluminum rack with 3 gas cans behind. The ski is unstable at high speeds (bouncing). Like to get this resolved so I can got WOT even with the extra gas.

    Any idea what is causing it?

  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canadia
    Stock ride plate?

    How fast are you running at wide open throttle?

  3. #3
    Stock ride plate, going 65-67 mph. I have a riva one on order. The ski is stock and only other thing I did was a valve to shutoff or turn on the rear spray

  4. #4
    SplishSplash's Avatar
    Join Date
    May 2006
    Belle River Ont Canada
    Got a pic of this setup?
    Too much weight aft is your problem, bet it gets worse as your main tank gets lower.
    Also all that fluid back there does not "lean" into the turns or the wave conditions, it does the opposite, so it not like have a rider back there.
    Try to ride your ski with someone that leans the wrong way every time, thats the 3 gas cans back there. The only way to reduce theat tendancy is baffled gas cans and they don't exist unless custom made.

  5. #5
    Click image for larger version. 

Name:	20190516_083619.jpg 
Views:	656 
Size:	91.9 KB 
ID:	448807
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20190509_122538.jpg 
Views:	162 
Size:	80.0 KB 
ID:	448806  

  6. #6
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    near Toronto, Canadia
    Quote Originally Posted by kazsak View Post
    How far back is that rack positioned?
    Looks like it is cantilevered over the rear edge of the deck?

    Can the rack/weight be shifted farther forward?

  7. #7
    Click image for larger version. 

Name:	20190525_200442.jpg 
Views:	166 
Size:	45.4 KB 
ID:	448820

    No it cant move forward

  8. #8
    We know that after 70mph the 2019s have unfavourable handling that the Riva plate fixes. It's possible the weight is making this problem come out at lower speed. Did you try trim adjustments? Did it get better or worse with trim up or down?

    Either way I think it unreasonable to expect the ski to handle properly at WOT with over 100lbs on the tail of it. Might help to get an auxilary tank made for under the rear seat so you don't need as much on the tail.

  9. #9
    Thanks, I did trim down and it seems a little more stable but still not like stock. I guess I will remove it and see if it goes away. If so I just have to leave with it on long rides

  10. #10

    Join Date
    May 2005
    Fort Myers
    I have same ski with a riva plate and a few extras- bounces at WOT - 75 mph. Someone must have a fix for the new hull. I'll be carrying extra fuel also.
    For a test - throw one can into the front - I'll try that tomorrow.

    Not certain the "new hull' is that great - yet.

    good luck.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2019 fx svho limited with maptuner x, what top speed?
    By kazsak in forum Yamaha Waverunner Tuning
    Replies: 3
    Last Post: 07-28-2019, 10:58 AM
  2. A Worthy Successor: 2019 Yamaha FX Limited SVHO
    By Rustymuscle in forum The Watercraft Journal
    Replies: 2
    Last Post: 10-05-2018, 09:35 AM
  3. Unstable idle and wandering RPM during low speeds
    By jimmyducati in forum 4-Tec Performance
    Replies: 24
    Last Post: 08-04-2018, 09:59 AM
  4. Stock FX SVHO, Limited and Cruiser top speeds
    By outnumbered in forum Yamaha PWC Performance (4-stroke)
    Replies: 4
    Last Post: 02-26-2018, 05:07 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts