Results 1 to 6 of 6
  1. #1
    Thiger's Avatar
    Join Date
    Sep 2009
    Location
    Sweden
    Posts
    27

    Setup stx-r for stock N/A

    I have bought me a second stx-r, my first is a limited setup stx-r.
    I compete in stock n/a class and we are follow ijsba rulebook. So i race mostly against stx 15f. I need to be faster than those 4 stroke.
    What mods can i do to engine, cooling water, carbs etc...
    Handling mods, the only mods that are is beachhouse spons.

    It would be fun to smoke some 4 stroke...


  2. #2
    jonny5's Avatar
    Join Date
    Aug 2005
    Location
    Redding, CA
    Posts
    1,266
    +1
    5
    Stock plate.....15F exit nozzle...2mm bigger stock prop works pretty good. Some other tricks that are not really legal but not illegal ethier...Well depends I have not read the book in a long time...lol

    Your lighter so getting off the line is not a problem.

    What are they aloud to run>> in the 15Fs'

  3. #3
    Thiger's Avatar
    Join Date
    Sep 2009
    Location
    Sweden
    Posts
    27
    I think they are allow to do about same mod on four/two-stroke.

    Hydroturf seat
    Rouge Big airfilter+catchcan
    Ada advance timing 5 degre
    Umi stering
    Works sponsons
    Solas mod impeller done by Impros
    ShreadMaster rideplate
    Mod intake grate
    Mod cooling water


    is there any profit to take away choke and change airfilter mount advance timing, etc..on the stx-r?

  4. #4
    jonny5's Avatar
    Join Date
    Aug 2005
    Location
    Redding, CA
    Posts
    1,266
    +1
    5
    NO way to advance advance timing on stxr but yea the flame arreestors and choke remove will help a little.

    I would run your factory pipe CDI in there to with 91 octane. If they can run the timing advance yu should be able to run a ignition. Thats like a double standard which is crap.

    Run the cdi with out the white plug. Which means you have to run the temp sensor off the pipe disconnected along with the air temp sensor.

  5. #5
    Thiger's Avatar
    Join Date
    Sep 2009
    Location
    Sweden
    Posts
    27
    Hi, i read abour your stinger mod whith the jetworx exhaust valve in your project thread , did it gain anything?
    I was out yesterday with my stock stx-r an it was doing 60,6 mp/h on the gps. only mod is r&d plate, greate and beachhouse spons.
    I will do some more test whith a skat trak 13/19 swirl this weekend. Do you know any more stock legal tricks that works?

  6. #6
    Thiger's Avatar
    Join Date
    Sep 2009
    Location
    Sweden
    Posts
    27
    ttt

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. GPR 1300 Best top speed setup for stock trim tabs and sponsons?
    By SJ-(KY) in forum Yamaha PWC Performance (2-stroke)
    Replies: 12
    Last Post: 06-08-2017, 02:55 PM
  2. which n/s spring for stock setup is best. gold or dull silver?
    By Buplaux in forum Yamaha PWC Performance (2-stroke)
    Replies: 3
    Last Post: 06-05-2014, 08:48 AM
  3. Best Air Filter setup for stock 03 1300R
    By Dstaton87 in forum Yamaha PWC Performance (2-stroke)
    Replies: 1
    Last Post: 06-18-2012, 08:28 PM
  4. WTB WTB: Choke Butterflies and screws for stock Ultra 150/STX-R Carbs
    By cconigliaro in forum Kawasaki Classifieds
    Replies: 0
    Last Post: 03-06-2012, 07:25 PM
  5. solas 16-21 for stock 900 stx?
    By keenanj in forum Kawasaki PWC Performance (2-stroke)
    Replies: 0
    Last Post: 06-30-2011, 10:59 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
  •