Results 1 to 3 of 3

Thread: Ultra 150 bog

  1. #1
    x2ryder's Avatar
    Join Date
    Mar 2007
    Location
    Moline, Illinois
    Posts
    407

    Ultra 150 bog

    My 2002 Ultra has 42 Keihins I added. Plugs look good but when I let off the throttle and get back on it it dies if I don't let off the throttle. I am 1 turn out on the bottom and 3/4 on top.


  2. #2
    TexasZ's Avatar
    Join Date
    May 2012
    Location
    Near San Antonio, Texas
    Posts
    460
    +1
    34
    Do you know the jetting size in them along with the pop off. Does your set of carbs have the accelerator pump?

  3. #3
    TexasZ's Avatar
    Join Date
    May 2012
    Location
    Near San Antonio, Texas
    Posts
    460
    +1
    34
    Just dawned on me that your set of carbs are the Sudco set, right? No accelerator pump?

    Until someone wiser than me comes along (won't take much), open them up some more on the bottom...the 1200 motors like a lot of fuel down low. Try upping the lower in 1/4 turns to see if it will straighten out. If it ends up over 1 1/2 turns out then that tells ya you need to jet up.

    jonny5 is the carb genius guru on these things...might want to PM him. Just have all the carb spec info ready along with what intake/s you're using and if it's a one piece OEM, whether or not the crossovers are blocked or not.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Ultra 150 bogging issues
    By Bdesim in forum Kawasaki PWC Performance (2-stroke)
    Replies: 4
    Last Post: 08-09-2016, 06:13 AM
  2. Ultra 150 bogs around 4-5000rpm then revs out
    By JDB636 in forum Kawasaki PWC Performance (2-stroke)
    Replies: 5
    Last Post: 05-14-2016, 09:52 PM
  3. Ultra 150 freshly rebuilt, bogging down and won't top out!
    By koryk in forum Kawasaki How To & FAQs
    Replies: 1
    Last Post: 07-13-2010, 10:46 PM
  4. 99 Ultra 150 an weird problems
    By xplayer2885 in forum Kawasaki How To & FAQs
    Replies: 8
    Last Post: 09-21-2006, 03:54 PM
  5. peteshauling kicking ultra 150s ass
    By dv8raaz in forum Videos & Pictures
    Replies: 5
    Last Post: 10-27-2005, 10:08 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
  •