Page 3 of 21 FirstFirst 1 2 3 4 5 13 ... LastLast
Results 21 to 30 of 202
  1. #21
    Connecticut CrazyA's Avatar
    Join Date
    Nov 2005
    Location
    CT.
    Posts
    7,994
    +1
    1,012
    Awesome post, and timely too as I've had these same exact questions running through my head.

    So if I'm reading everything correctly, I can get away without the controller for the following setup-

    '05 with:

    Hood & Bucket air mods
    D-Plate
    Milled stock head
    14/20 Dynafly
    85mm Nozzle

    I understand that it will help with the midrange, but without it, is there any threat of a partial throttle siezure cruising around in the midrange? (not that I would ever do that.)

    Thanks for the great info gents!!!!

    .


  2. #22
    Quote Originally Posted by CrazyA View Post
    Awesome post, and timely too as I've had these same exact questions running through my head.

    So if I'm reading everything correctly, I can get away without the controller for the following setup-

    '05 with:

    Hood & Bucket air mods
    D-Plate
    Milled stock head
    14/20 Dynafly
    85mm Nozzle

    I understand that it will help with the midrange, but without it, is there any threat of a partial throttle siezure cruising around in the midrange? (not that I would ever do that.)

    Thanks for the great info gents!!!!

    .
    in my post i listed a controller as required after any compression or timing keyway mods.

  3. #23
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,689
    +1
    416
    Ross is right, and I am a dumbass that wasnt paying attention to what I was posting.

    Adding compression is a good reason to add a controller... its not worth the gamble, especially in the summer months.

  4. #24
    Moderated GPRXPJared's Avatar
    Join Date
    Oct 2007
    Location
    Palm Harbor, Florida
    Posts
    1,226
    Quote Originally Posted by WFO View Post
    Ross is right, and I am a dumbass that wasnt paying attention to what I was posting.

    Adding compression is a good reason to add a controller... its not worth the gamble, especially in the summer months.
    +1

  5. #25
    Connecticut CrazyA's Avatar
    Join Date
    Nov 2005
    Location
    CT.
    Posts
    7,994
    +1
    1,012
    That's where I got a little confused. Got it now. Thanks again.



    Quote Originally Posted by WFO View Post
    As Ross stated, no controller is really needed but is recommended (milled head) because of the help it provides in the midrange

    Midrange circuit is typically from slow cruise till the red light comes on, so you are right (3000-5500)
    Quote Originally Posted by rossnemo View Post
    in my post i listed a controller as required after any compression or timing keyway mods.
    Quote Originally Posted by WFO View Post
    Ross is right, and I am a dumbass that wasnt paying attention to what I was posting.

    Adding compression is a good reason to add a controller... its not worth the gamble, especially in the summer months.

  6. #26
    JKR1300's Avatar
    Join Date
    Jan 2006
    Location
    St Louis & 6mm LotO
    Posts
    495
    +1
    6
    Quote Originally Posted by J-ME View Post
    What your are saying doesn't make sense. You are saying to use a controler (which may fail), when you don't really need one.
    I thought I was clear. In my opinion, with the mods I have listed you do need a controller. When mine failed the fuel mapping reverted back to stock and I lean seized.
    (Check to ensure your lights are working prior to every ride)

  7. #27
    When my controller burnt out, it was easy to tell as she was boggy and would surge at part thottle.

  8. #28

    Join Date
    Jul 2005
    Location
    Central North Carolina
    Posts
    3,737
    +1
    468

    Thumbs up thanks

    At the request of one of the top tuners on the forum "2fast4u", me and Rossnemo have decided to put up some threads about the Riva and R&D EFI controllers.------------------------------------- Thanks Ross and WFO for doing such a great job on EFI Controllers. This should clear up a lot of problems for some EFI Guys Rich and Ross you both get 4 stars **** Tommy Jordan

  9. #29
    05NNJ1300R's Avatar
    Join Date
    Jun 2008
    Location
    rockland county ny
    Posts
    583
    +1
    63
    So what do you guys think my settings should be at? I currently have the Riva controler at 6-6-2-7 with the current mods below in my signature.

    Thanks
    George

  10. #30
    Quote Originally Posted by 05NNJ1300R View Post
    So what do you guys think my settings should be at? I currently have the Riva controler at 6-6-2-7 with the current mods below in my signature.

    Thanks
    George
    Remember George, there is no perfect setting that will work on every ski. It is up to you to experiment and fine tune the settings to your particular skis combination. You are non ported according to your post, so the 6-6-2-7 may be a little on the rich side. I would go the 5-5-1-6 and i bet you will gain a little on the top end.
    Another factor seems to be a small variance from one controller to another. I have known several people who have changed controllers and had to make minor changes in the settings with a different controller.

Page 3 of 21 FirstFirst 1 2 3 4 5 13 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. When do you need a fuel pressure regulator?
    By ptscon in forum 4-Tec Performance
    Replies: 10
    Last Post: 10-24-2015, 06:55 PM
  2. FS R&d efi fuel controller
    By Bryan K in forum Yamaha Classifieds
    Replies: 7
    Last Post: 11-03-2009, 09:41 PM
  3. FS Riva efi fuel controller 10 hrs
    By LS1300R in forum Yamaha Classifieds
    Replies: 0
    Last Post: 10-26-2009, 08:59 AM
  4. Has anyone needed an EFI just with a jetworks holeshot kit?
    By jcorallo in forum Yamaha PWC Performance (2-stroke)
    Replies: 3
    Last Post: 11-09-2008, 08:24 AM
  5. When do i need to change the an old Intercooler
    By LAB69 in forum 4-Tec Performance
    Replies: 3
    Last Post: 02-05-2007, 11:37 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
  •