Results 1 to 10 of 10
  1. #1

    Join Date
    Apr 2008
    Location
    Ohio
    Posts
    68

    Piston scored, where to go from here? (sl700)

    (sl700) Ok so Im in the middle of an update kit project, currently have the flywheel under pressure and hoping its going to pop. Upon pulling the motor i found myself in more trouble then i had had thought. I didnt do a compression prior to dis-assembly, the motor seemed to run flawless so i was not thinking about its condition at the time. Anyways, one cylinder looks very good while the other has so serious scores on the intake side of the piston and bottom of the cylinder wall(very minimal marking on the top of the wall). Just need some suggestions on where i can go from here...

    im not real experienced in motor repair but im learning hah you guys are great and have helped me out so much in the past! hopefully i can return some tech tips when i learn more myself


    a few photos on photobucket...

    http://s1229.photobucket.com/albums/...nd%20cylinder/


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,329
    +1
    31
    Nice piston wash.

    How bad is the scoring? Can you catch a fingernail in any of the grooves? (pics don't look real bad)

  3. #3

    Join Date
    Apr 2008
    Location
    Ohio
    Posts
    68
    on the piston, yes i catch several with my fingernail

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,329
    +1
    31
    Sounds kinda deep. Will most likely need to bore the cylinder and go with an oversized piston.

    Does the other one look bad at all? Maybe do them both and call it good, or just do the one and keep it as cheap as possible.

  5. #5
    john zigler's Avatar
    Join Date
    Aug 2006
    Location
    WI
    Posts
    2,545
    +1
    33
    i can fix you up with a complete top end rebuild kit.

    2 - pistons, rings, pins, clips, top end bearings, and top end gasket kit. 220.00 + s&h

    i can also bore your cyls & chamfer the ports here, if you need. 50.00 ea.

    please email or call if i can help.

  6. #6
    Banned User
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    16,708
    +1
    1,324
    I have had John do cylinders for me. Good work. I recommend him highly.

  7. #7

    Join Date
    Apr 2008
    Location
    Ohio
    Posts
    68
    The other piston and cylinder look great, thinking about just doing one if i can do that? i have to find a shop that can bore it for me.

    I just came across what i think to be a good deal i found last night, picked up a running 1999 slt700 with clean continental trailer, paid $475. compression 120 on both. Sounds good, starts right up. Need to go threw it. missing the mfd, broken seat latch couple little things. Is there somewhere i can get a driveshaft alignment tool and would the 1996 be same tool as 1999. id like to ensure that they are both correct.

  8. #8
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,329
    +1
    31
    You can do just 1 cylinder, yes.

    John Zigler or Sharp's Marine can do the cylinder boring for you, and get you the correct size piston and gaskets.

    John should have the alignment tool, and yes, it will fit both years with no problem.

  9. #9

    Join Date
    Apr 2008
    Location
    Ohio
    Posts
    68
    sorry i want to correct myself the other ski i have is a 1999 SLH700.

    thanks for all the help! I think im going to hold off on that motor for a little while and for now going to swap everything from the 1999 SLH700 and put it into my 1996 sl700 (the 1999 SLH700 hall is pretty tore up). After i get that done then jump back on this motor and get it done... keep it for a spare or sell it who knows!

    I was wondering if the jet pump from the 1999 SLH700 could be put on the 1996 sl700? it looks to be a little longer?

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,329
    +1
    31
    Yep. You'll need to carry over the longer parts to accommodate it though.

    Drive shaft, steering cable, cooling tube, trim or reverse cables/linkages, etc....

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. where to go from here? 84.8 mph fzr
    By rcab85 in forum Yamaha PWC Performance (4-stroke)
    Replies: 138
    Last Post: 03-22-2016, 01:02 PM
  2. Trying to see if this engine is rebuildable, where to go from here?
    By chevyman95 in forum Kawasaki PWC Performance (2-stroke)
    Replies: 5
    Last Post: 02-25-2016, 10:38 AM
  3. wear ring issues and stator pics attached where do I go from here ??
    By Jvislawncare in forum Yamaha PWC Performance (2-stroke)
    Replies: 6
    Last Post: 05-14-2014, 05:37 PM
  4. hmm... dunno where to go from here
    By mongorunner in forum 2-Stroke Performance
    Replies: 30
    Last Post: 06-28-2009, 10:55 AM
  5. Now where to go from here…..
    By breeves in forum Yamaha PWC Performance (2-stroke)
    Replies: 11
    Last Post: 08-01-2007, 08:44 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
  •