Results 1 to 9 of 9
  1. #1
    cappa 2004 xlt1200's Avatar
    Join Date
    Apr 2009
    Location
    bundaberg QLD Australia
    Posts
    24

    stock head milling

    hi guys i was just wondering what is a safe amount to take of the head of a 2004 xlt1200 to raise the compression


  2. #2
    2000 GPRXP 4tec shooter98xpl's Avatar
    Join Date
    Dec 2005
    Location
    Charleston SC
    Posts
    2,717
    +1
    3
    simple, send it to Jim @ Jim's performance (look at my sig) and he'll have it done and shipped back in no time.
    SHOOTER

  3. #3
    Nothin' runs like a Deere IowanGPR's Avatar
    Join Date
    Sep 2006
    Location
    Waterloo, IA
    Posts
    1,608
    +1 jim is good

  4. #4

    Join Date
    Aug 2007
    Location
    Bridgeton nj
    Posts
    111
    I would leave it alone, if you raise compression you going to raise piston temp. and your going to have to rejet

  5. #5
    cappa 2004 xlt1200's Avatar
    Join Date
    Apr 2009
    Location
    bundaberg QLD Australia
    Posts
    24
    thanks for that just thought i would look into it see what it would take. Have you guys seen any power gain in removing the black silencer thing in the exhaust

  6. #6
    zx11rider's Avatar
    Join Date
    Jun 2009
    Location
    Cape Coral
    Posts
    1,132
    Leave the sound suppression it will get louder and you lose top end on the xlt you want to replace the intake grate and seal the pump shoe for safety first, the stock grate is not safe i have pictures in the project section of my ski with those mods being done. depends how much you want to spend to go faster jims ff plate is a great investment to get more speed and better ride some get 3-4 over stock on his plate. welcome and gl with your ski

  7. #7
    IMO, Milling the head and aftermarket F/A are a very good mod combo to start gaining more power,and this should be done together with jetting.

    About milling, Not all machine shops have the knowledge to do it properly on this type of heads. It's not as simple as shaving some material, it also involves cutting some angles on the squish band...

  8. #8
    Pistonwash's Avatar
    Join Date
    Aug 2005
    Location
    Florida
    Posts
    3,595
    +1
    77
    Quote Originally Posted by paulie1959 View Post
    I would leave it alone, if you raise compression you going to raise piston temp. and your going to have to rejet
    He won't have to re-jet unless he puts an air cleaner in.

    The compression does raise piston crown temps but not to the degree of re-jetting.

  9. #9

    Join Date
    May 2009
    Location
    Miami, Florida, United States
    Posts
    306
    +1
    4
    i have the F/A comen for mine and want to mill the head.. anyone point me in the right directions on how to get it RE-JET ?

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Has anyone had their stock head milled
    By crittpen in forum Yamaha PWC Performance (2-stroke)
    Replies: 5
    Last Post: 06-29-2011, 06:50 AM
  2. stock head milling ?
    By steven1300r in forum Yamaha Open Discussion
    Replies: 31
    Last Post: 12-17-2008, 09:23 PM
  3. stock 951 head milling? how much?
    By 1fastrat in forum 2-Stroke Performance
    Replies: 12
    Last Post: 08-26-2008, 07:10 PM
  4. Reliability with Milled Stock Head
    By Chrisrokc in forum Yamaha PWC Performance (2-stroke)
    Replies: 12
    Last Post: 07-10-2007, 08:40 AM
  5. Milling a stock head?
    By DaFischQC in forum Yamaha PWC Performance (2-stroke)
    Replies: 8
    Last Post: 01-25-2006, 06:35 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
  •