Page 1 of 2 1 2 LastLast
Results 1 to 10 of 14

Thread: Carb adjustment

  1. #1

    Join Date
    May 2008
    Location
    Charlottesville VA
    Posts
    39

    Carb adjustment

    How do i adjust the carbs, i removed my outerwears and i want to richen it up a bit.

    Do i use the 2 "t" bars coming off the carbs to adjust? tighten=leaner/loosen=richer?


  2. #2
    Moderator OsideBill's Avatar
    Join Date
    Mar 2006
    Location
    United States
    Posts
    11,875
    +1
    30
    What year and model ski? As a general rule of thumb opening the screws will add more fuel. there are two adjustment screws per carb one for low speed circuit one for high speed circuit. look for the Mikuni SBN manual in the how to section it explains a lot about tuning carbs.

  3. #3

    Join Date
    May 2008
    Location
    Charlottesville VA
    Posts
    39
    sorry, its a 01 GP12R

  4. #4
    Moderator OsideBill's Avatar
    Join Date
    Mar 2006
    Location
    United States
    Posts
    11,875
    +1
    30
    Please describe why you feel the need to richen it up? how is it running?

  5. #5

    Join Date
    May 2008
    Location
    Charlottesville VA
    Posts
    39
    well, the ski runs well now except for a minor bogg on the low end about 30% throttle while planing out. i had a post about why my ski would only run 60MPH and they recommended that i take off the outer wears and that i would have to richen a bit for the increased airflow.

    here is the link to that post.

    http://www.greenhulk.net/forums/showthread.php?t=58547

  6. #6
    those outerwears could save your motor! think twice about removing them!
    I have 2 identical skis 1 with and 1 waiting for outerwears no dif in rpm . I bet bill will help u out with the bog acell pump issue without loosing the outerwears

  7. #7
    bump

  8. #8
    Moderator OsideBill's Avatar
    Join Date
    Mar 2006
    Location
    United States
    Posts
    11,875
    +1
    30
    I read the other thread too. my suggestion is fatten em up a little to be safe for the long weekend. Then if you are serious about getting some speed get a Tach a GPS and get some data collected so you have a baseline. Then from there you will need to get into the ski a little and find out what you are working with. Compression Jetting specs etc. it takes some research to make mods work for you, otherwise you are shooting in the dark.

  9. #9
    Moderated
    Join Date
    Oct 2006
    Posts
    3,711
    Quote Originally Posted by ZMANN View Post
    those outerwears could save your motor! think twice about removing them!
    I have 2 identical skis 1 with and 1 waiting for outerwears no dif in rpm . I bet bill will help u out with the bog acell pump issue without loosing the outerwears

    i lost 180rpm when i fitted outwears and around 2-3 mph...what brand of outwears are you using?

  10. #10
    Moderator OsideBill's Avatar
    Join Date
    Mar 2006
    Location
    United States
    Posts
    11,875
    +1
    30
    Quote Originally Posted by izz0 View Post
    i lost 180rpm when i fitted outwears and around 2-3 mph...what brand of outwears are you using?

    This is definitely not the norm. I have run with and without my results were no where near this dramatic. Type of flame arrestor used has a lot to do with this.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. carb adjust 98 slxh
    By tryintolearn in forum Polaris How To & FAQs
    Replies: 14
    Last Post: 07-28-2007, 11:32 PM
  2. carb adjustment
    By t1turner in forum Polaris How To & FAQs
    Replies: 1
    Last Post: 06-08-2007, 11:47 AM
  3. sl 780 carb adjustment jetting assistance...
    By jcc011185 in forum Polaris PWC Performance
    Replies: 5
    Last Post: 05-07-2007, 03:55 PM
  4. carb adjustment
    By tommy33mac in forum Polaris How To & FAQs
    Replies: 5
    Last Post: 04-07-2007, 08:15 PM
  5. where to start on carb adjustment
    By brandn in forum Yamaha PWC Performance (2-stroke)
    Replies: 8
    Last Post: 12-16-2006, 09:47 AM

Posting Permissions

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