Results 1 to 4 of 4
  1. #1

    Join Date
    Feb 2006
    Location
    Palm Bay, FL
    Posts
    1

    Help rebuilding a 98 GP800

    Hello all,

    I have a 1998 GP800 that is completely apart. I was racing it back in 99, and did some mods to it. I hydrolocked the engine in freshwater and went home. I tore out the motor to get the water out and opene up the crankcase then liberally sprayed it down with oil and anti-water sprays.

    Its been sitting there for about 5 years.
    Well I have 2 '05 GP1300R's and got back into the jetski scene after a long hiatus. I know the GPR's arent excatly the best boat to play in the surf. I've decided to get my GP800 back together and I need some help.

    What do I need to do to prep the engine for reassembly? Should I coat it with something and let it sit?

    Would I need to clean the cylinder walls, cylinders, ets? And if so what should I use?

    I have the manual for it allready, so is there anything else I would need.

    Thanks for the help.

    Jamie


  2. #2
    ....back from the dead.... J-ME's Avatar
    Join Date
    Aug 2005
    Location
    Delaware
    Posts
    1,577
    +1
    2
    Post some pics so we can see the condition of the engine internals.

  3. #3
    Pistonwash's Avatar
    Join Date
    Aug 2005
    Location
    Florida
    Posts
    3,595
    +1
    77
    Check that crank out and make sure the bearings are not rusted,..if they, you need to send it off to be re-built. I personally would do it to be safe anyway.

  4. #4
    Flying Scotsman's Avatar
    Join Date
    May 2006
    Location
    IllINOIS
    Posts
    6,514
    +1
    4
    Definately have the crank rebuilt or replaced.
    If you hydrolocked it it needs work.
    What all was damaged 5 years ago.
    Crank work a fresh top end and a carb rebuild should get you running.
    I f the engine was not run after clearing out the ingested water assuming that rods were not bent etc,
    5 years sitting with just a little water in those bearings and you have a problem.
    Crank could be twisted bad also.
    SCOTT........

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 98 GP800 engine help
    By JDgreen in forum Yamaha Old School Skis
    Replies: 3
    Last Post: 07-21-2013, 05:50 PM
  2. 2-Stroke Plz Help! 98 GP800 Buzzing from fuse box and wont turn over
    By CrownVicNick in forum Yamaha Projects & Build Threads
    Replies: 1
    Last Post: 04-27-2013, 06:10 PM
  3. Need carb tuning help on 98 gp800
    By qbzonk in forum Yamaha Old School Skis
    Replies: 11
    Last Post: 08-05-2007, 01:17 PM
  4. Need carb rebuild kit for '98 GP800
    By qbzonk in forum Yamaha Open Discussion
    Replies: 3
    Last Post: 12-15-2006, 07:57 PM
  5. 98 gp800 impeller selection for max speed
    By spyder3000gtvr4 in forum Yamaha PWC Performance (2-stroke)
    Replies: 9
    Last Post: 09-10-2006, 05:51 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
  •