Results 1 to 2 of 2
  1. #1

    Thumbs up YAMAHA GP1200R flat top kawasaki pistons

    hi how ya all doing a few questions for the guys in the know...


    i have a gp1300r with a gp1200r engine. it has fuel injection.
    3 degree key 80.5 bore 78 stroke 3 cylinder = 1190 cc
    decked cylinders 3mm. skimmed r&d heads.kawasaki flat top pistons.
    steel liners ported. welded crank. 05 exhaust d plate fuel controller..
    ...got water in & lifted cylinder


    now im going to have the cylinder fixed
    im having it bored out to 83 bore 78 stroke 3 cylinder = 1266 cc

    im trying to get correct squish angle & what cc are in the head..
    to get me to 215 psi for race gas...

    need help im not 100 percent sure is the squish on kawasaki 8 degree
    & looking for the cc to get compression to 215psi

    cheers kevin
    Last edited by kevboy34; 06-18-2008 at 09:14 AM.


  2. #2
    Duke's Avatar
    Join Date
    Jul 2006
    Location
    Florida
    Posts
    10,004
    +1
    406
    Quote Originally Posted by kevboy34 View Post
    hi how ya all doing a few questions for the guys in the know...


    i have a gp1300r with a gp1200r engine. it has fuel injection.
    3 degree key 80.5 bore 78 stroke 3 cylinder = 1190 cc
    decked cylinders 3mm. skimmed r&d heads.kawasaki flat top pistons.
    steel liners ported. welded crank. 05 exhaust d plate fuel controller..
    ...got water in & lifted cylinder


    now im going to have the cylinder fixed
    im having it bored out to 83 bore 78 stroke 3 cylinder = 1266 cc

    im trying to get correct squish angle & what cc are in the head..
    to get me to 215 psi for race gas...

    need help im not 100 percent sure is the squish on kawasaki 8 degree
    & looking for the cc to get compression to 215psi

    cheers kevin


    what i im
    Tim Judge should be able to answer those questions. Give his shop a call, 954-415-9226.

    Lowell Horning would be in the know as well. 406-375-0801

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Whats the deal with 80mm flat top pistons?
    By PolarisNut in forum Yamaha PWC Performance (2-stroke)
    Replies: 9
    Last Post: 09-11-2009, 06:27 PM
  2. FS: Speedwerx YFTE flat top domes and pistons MINT!
    By PolarisNut in forum Yamaha Classifieds
    Replies: 1
    Last Post: 04-02-2009, 09:32 PM
  3. kawasaki pistons flat top need little help
    By kevboy34 in forum Yamaha PWC Performance (2-stroke)
    Replies: 2
    Last Post: 06-17-2008, 07:40 AM
  4. flat top pistons
    By whiteelvis in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 03-31-2008, 02:02 PM
  5. Flat Top Kawasaki's ?
    By MTRHEAD in forum Yamaha PWC Performance (2-stroke)
    Replies: 5
    Last Post: 04-17-2006, 02:02 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
  •