Results 1 to 6 of 6
  1. #1
    thspoq's Avatar
    Join Date
    Jan 2008
    Location
    Hampton, Va
    Posts
    128
    +1
    1

    Which Head Gasket W/Protec Head?

    Ive got a mildly modded 00' GP1200R. Last year I chipped a piston and replaced all the pistons with pro-x pistons. During the install, I replaced the head gasket with an SBT head gasket. The ski has a 150 psi protec rec head installed and I am only getting ~130psi. Should I remove some layers from the head gasket? If so, how many?

    Thanks


  2. #2
    You could take the silver one out, it's in the middle of the gaskets. Also check your squish....do you know how to do that?

  3. #3
    thspoq's Avatar
    Join Date
    Jan 2008
    Location
    Hampton, Va
    Posts
    128
    +1
    1
    Quote Originally Posted by peteshauling View Post
    You could take the silver one out, it's in the middle of the gaskets. Also check your squish....do you know how to do that?
    Thanks for the reply. Nope, I dont know how to check the squish.

  4. #4
    Ok, here ya go..........

    piece of sodder, bend a little put into the cyl until touches the side, bump the key till the piston comes to the top and take your measurement. Do all 3
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Picture 051.jpg 
Views:	38 
Size:	127.4 KB 
ID:	171063   Click image for larger version. 

Name:	Picture 052.jpg 
Views:	41 
Size:	149.7 KB 
ID:	171064   Click image for larger version. 

Name:	Picture 053.jpg 
Views:	37 
Size:	141.0 KB 
ID:	171065  

  5. #5
    thspoq's Avatar
    Join Date
    Jan 2008
    Location
    Hampton, Va
    Posts
    128
    +1
    1
    Quote Originally Posted by peteshauling View Post
    Ok, here ya go..........

    piece of sodder, bend a little put into the cyl until touches the side, bump the key till the piston comes to the top and take your measurement. Do all 3
    Easy enough, what kind of squish numbers should be getting? Thanks again!

  6. #6
    Quote Originally Posted by thspoq View Post
    Easy enough, what kind of squish numbers should be getting? Thanks again!
    Well they vary, ski to ski. depending if you have your head shaved or not, if your ski is heavly modded, my 1500 and 1390 tripple are both low fortys (thous).

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Which head gasket to use?????????????
    By rxpvic in forum 4-Tec Performance
    Replies: 19
    Last Post: 03-25-2012, 09:25 AM
  2. which head gasket for better compression
    By otoss in forum 4-Tec Performance
    Replies: 17
    Last Post: 11-21-2010, 06:01 PM
  3. Which Heads R&D or Riva ??
    By thatmrb in forum Yamaha PWC Performance (2-stroke)
    Replies: 13
    Last Post: 07-30-2009, 10:49 PM
  4. Which head gasket stock or copper?
    By mstennes in forum 4-Tec Performance
    Replies: 6
    Last Post: 07-19-2008, 08:22 PM
  5. Which head should I fit?
    By Mongoose in forum Yamaha PWC Performance (2-stroke)
    Replies: 6
    Last Post: 03-19-2008, 09:25 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
  •