Page 1 of 4 1 2 3 ... LastLast
Results 1 to 10 of 32
  1. #1

    Join Date
    Mar 2007
    Location
    Nashville, TN
    Posts
    478

    ls1300r Project

    down on power, knocking became audible and found this. Did a compression test cylinder 1 60psi, #2 140psi, #3 140psi. Went and pulled head #1 found cylinder wall scoring, so pulled the cylinder. Boat just turned 40 hrs this weekend. Im guessing heat issue caused this to happen. Leaned out.




    Last edited by ChewsteR; 10-15-2007 at 07:57 PM.


  2. #2
    One day at a time..... N8R's Avatar
    Join Date
    Dec 2005
    Location
    TAMPA
    Posts
    3,716
    +1
    41
    there is the excuse to go bigger that you have been looking for.. gimmy a shout tommorrow

  3. #3

    Join Date
    Mar 2007
    Location
    Nashville, TN
    Posts
    478
    not my boat, but that might be an option.

  4. #4
    WATER WOODY's Avatar
    Join Date
    Aug 2005
    Location
    Minden, Nevada, United States
    Posts
    10,664
    +1
    11
    Dang Chewster.........from the pic of the piston top,i dont see any good wash.Time for BB........maybe.

  5. #5

    Join Date
    Mar 2007
    Location
    Nashville, TN
    Posts
    478
    not my boat, buddy got it about a 2 years ago, it had the old school riva efi, had to open it and adjust it. I believe it went south, he's been chasing motor issues for 6 months or so. Finally he got a new riva efi, but it was to late. it went about 90miles this weekend slapping the cylinder.

  6. #6
    sleeplessnMS's Avatar
    Join Date
    Mar 2006
    Location
    Waveland,MS
    Posts
    1,943
    DANG! Now that NASTY

  7. #7
    Duke's Avatar
    Join Date
    Jul 2006
    Location
    Florida
    Posts
    10,004
    +1
    406
    Hard to tell from the picture but that cylinder may clean up. The aluminum from the piston will come off with a little muratic acid and a Q-tip. Honing is not an issue either.

    Looks like a lean seizure as everyone else has indicated. I would take a look at the other 2 cylinders and decide from there. With that little of hours on it a new piston and ring set could give Larry 200 + hours of riding.

    As bad as it looks, the boat ran over 75 miles of river mostly wide open.

  8. #8
    mtrager's Avatar
    Join Date
    Jul 2006
    Location
    Orlando, Florida, United States
    Posts
    2,443
    +1
    2
    Chewster,

    It was nice to see you guys again Sunday.

    Have you checked the rod to see if it moves up and down?

  9. #9

    Join Date
    Mar 2007
    Location
    Nashville, TN
    Posts
    478
    what should i do with this cylinder clean the piston alum. off, and hone it. Sleeve it, or replace it?

  10. #10
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    Clean it first and see how bad it is.

    If it has large gouges, you can send it off and get it welded and re-nicked, or just replace it.

Page 1 of 4 1 2 3 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. FS 03 GP1300R Cylinders w/ Pistons
    By camcama in forum Yamaha Classifieds
    Replies: 1
    Last Post: 05-04-2016, 01:27 AM
  2. 03 gp1300r broken piston ring
    By Grumumba in forum 2-Stroke Performance
    Replies: 0
    Last Post: 06-21-2012, 04:25 PM
  3. 03' GP1300R Need a new piston and ring. Need mechanic near Chicago
    By dkozinski in forum Yamaha PWC Performance (2-stroke)
    Replies: 2
    Last Post: 08-14-2010, 10:26 PM
  4. Which pistons should I have 03 gp1300r
    By DONALDBUCHANAN in forum Yamaha PWC Performance (2-stroke)
    Replies: 10
    Last Post: 08-19-2007, 09:31 PM
  5. '03 GP1300R questions (EFI)
    By howestek in forum Yamaha PWC Performance (2-stroke)
    Replies: 26
    Last Post: 12-07-2005, 11:00 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
  •