Results 1 to 5 of 5

Thread: 2019 VXR

  1. #1
    jimyed's Avatar
    Join Date
    Jan 2007
    Location
    South west Mo-25 miles from Tablerock lake.
    Posts
    37

    2019 VXR

    My 2019 VXR stock with 44 hours will only run 60mph--gps. About 7100 rpms...the VXR's speedo read 67. Thats 200lb me and 8 gallons of fuel. Took it back to the dealer and was told thats all she'll do and they charged me 95 bucks and sent me down the road. They said they contacted Yamaha and was told thats about right??? My sales guy said he would check with Yamaha and get back to me. Still waiting.:O) All our 87 octane gas around here has 10% ethanol. Only non ethanol fuel is premium and it's 91 octane. I have read mixed things about higher octane numbers in an engine that is tuned for 87 octane. So I have been afraid to put some in just to see if there is any difference. Any suggestions would be greatly appreciated... PS What I don't understand is how all the test results I read before purchasing show the VXR a 66mph ski--I understand there are many factors--but 66 to 60 mph is a huge loss in my opinion... I feel like I've been bamboozled...
    Last edited by jimyed; 09-08-2019 at 12:03 PM.


  2. #2
    Click avatar for tech links/info K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    41,453
    +1
    2,024
    There is no harm is using higher octane roadside gasoline in your ‘87 octane’ Yamaha engine.

    There is a minor power reduction when using 10% ethanol blended gasoline rather than ‘straight gasoline’. There is an even smaller power reduction when using 91 octane fuel in an 87 octane engine.

    Is your impeller stock? What altitude and air temperature where you are you riding?

    The sustained engine RPM seems a tad low.

  3. #3
    jimyed's Avatar
    Join Date
    Jan 2007
    Location
    South west Mo-25 miles from Tablerock lake.
    Posts
    37
    Impeller stock--everything stock except Ca doo pro gps. Altitude--1120--air temp 90F...

  4. #4
    Quote Originally Posted by jimyed View Post
    Impeller stock--everything stock except Ca doo pro gps. Altitude--1120--air temp 90F...
    I know this topic is a months old. Thought I'd weigh in.

    I was getting 64mph GPS. Alt 1085 Temp 70 1/2 tank. 5 hours on the engine

    Since done the Riva setup, MapTune, 11/15, free flow, stock intake grate & rideplate, ribbon delete, 67mph.
    Always have the prop checked by your local prop shop. My Solas 11/15 was averaging 10/13 when measured so I had it repitched.

  5. #5
    Saum700p's Avatar
    Join Date
    Sep 2017
    Location
    New Orleans
    Posts
    439
    +1
    75
    Quote Originally Posted by K447 View Post
    There is no harm is using higher octane roadside gasoline in your ‘87 octane’ Yamaha engine.

    There is a minor power reduction when using 10% ethanol blended gasoline rather than ‘straight gasoline’. There is an even smaller power reduction when using 91 octane fuel in an 87 octane engine.

    The thing with ethanol is there is a lower btu output from it then gasoline. The skis are tuned so rich from the factory for safety on the motor that the 10% actually leans it out. several times I have run non ethanol vs 10% to test the difference and have seen 3mph gain by using 10%. Using ethanol fuels in boats is fine but I suggest using all of it in the tank that trip and fueling up fresh for the next ride. Ethanol stores really poorly. As far as using 91 vs 87 octane if you're not running a tune with more timing its not going to benefit you any. Wont hurt your ski to run more but its not going to do anything for you. Id look into ribbon delete, air filter, and ride plate then eventually a tune if you're still looking for more speed.
    Last edited by Saum700p; 02-25-2020 at 12:13 AM.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Would 2019 vxr intake grate/rideplate bolt on a 2015 vxr.
    By fast15vxr in forum Yamaha PWC Performance (4-stroke)
    Replies: 5
    Last Post: 06-05-2019, 12:36 AM
  2. 2019 Vxr Batterry
    By arah1 in forum Yamaha Open Discussion
    Replies: 3
    Last Post: 03-28-2019, 06:23 PM
  3. Can't Decide, Please Help. Between 2019 VXR or 2019 Cruiser HO
    By KevinMarshall in forum Yamaha PWC Performance (4-stroke)
    Replies: 16
    Last Post: 02-20-2019, 01:13 AM
  4. 2019 vxr
    By Dave123 in forum Yamaha Open Discussion
    Replies: 3
    Last Post: 10-04-2018, 06:50 PM
  5. 2019 yamaha vxr
    By Mharrison in forum Yamaha PWC Performance (4-stroke)
    Replies: 9
    Last Post: 06-29-2018, 10:46 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
  •