Results 1 to 4 of 4
  1. #1

    2008 Ultra 250 rebuild

    I have a 2008 Ultra with a bad motor. Supercharger is still good. Was thinking about rebuilding from the ground up. Is it possible to make this an 80-90MPH Ski?

  2. #2
    Formerly Ultra250 TN Aquaholic6801's Avatar
    Join Date
    Feb 2007
    Location
    Old Hickory,Tn
    Posts
    5,744
    +1
    806
    No... Not unless you put a 500+ hp motor in it, then it still may only go upper 70s... part it out and get a Yamaha...

  3. #3
    steve45's Avatar
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    8,633
    +1
    887
    While I don't agree with Aquaholic's recommendation of switching to Yamaha, the Ultra 250 really is a lost cause.

    The Ultra 310 is a much better 'Ski than the 250. From what I've read, it can be modded to hit 80 MPH, but I haven't done it.


  4. #4
    dcuhpw's Avatar
    Join Date
    Jan 2019
    Location
    Guam
    Posts
    805
    +1
    58
    The hull on all the supercharged ultras is pretty identical but its a tough hull to get over 72-75mph. The existing supercharger may be worth a little if its on perfect shape. Id probably convert it over to an Ultra LX. Good all around ski with nice open water handling and a reliable power plant. But it will top out around low 50s.

    If you want to go 80-90 its just plane easier to start with a seadoo or Yamaha.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2008 ultra 250
    By unlimitedss20 in forum Kawasaki PWC Performance (4-stroke)
    Replies: 5
    Last Post: 07-07-2015, 10:20 PM
  2. Ultra 250 rebuild and conversion
    By ard250x in forum Kawasaki PWC Performance (4-stroke)
    Replies: 6
    Last Post: 05-11-2010, 01:04 AM
  3. 2008 Ultra 250
    By Edwin in forum Kawasaki Open Discussion
    Replies: 1
    Last Post: 04-01-2009, 07:32 PM
  4. Ultra 250 #1 in 2008
    By ghashimoto in forum Kawasaki PWC Performance (4-stroke)
    Replies: 24
    Last Post: 10-20-2008, 07:10 AM
  5. Ultra 250 pump rebuild
    By Bad Brad in forum Kawasaki How To & FAQs
    Replies: 6
    Last Post: 06-07-2008, 01:54 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
  •