Results 1 to 8 of 8
  1. #1

    Join Date
    Nov 2009
    Location
    NC
    Posts
    783
    +1
    29

    In over my head rebuilding FX HO?

    So I've completely rebuilt one 65u and one 66v 1200 motors with success, in addition, 66v cylinder replacement and carb rebuilds. Have buddy who blew an older FX HO motor. Am I ready to rebuild a 4-stroke? I have no formal mechanical training, no machine shop, no press, no lathe. Will a chain hoist, an air wrench, and hand tools get the job done? Looks imposing on paper. Ready for another challenge but afraid I'll get it apart and won't be able to get it back together again.
    Boost my confidence or tell me to run away please!


  2. #2
    This is how I run a jetski shop in the desert nmpeter's Avatar
    Join Date
    May 2008
    Location
    Elephant Butte New Mexico
    Posts
    6,520
    +1
    1,269
    might be doable
    how bad is the motor?
    expensive to replace..even with an sbt
    I assume you can handle a torque wrench and have a solid grasp of basic best practices from your successful 2 stroke builds

  3. #3
    wotxxxsd's Avatar
    Join Date
    May 2012
    Location
    Orlando
    Posts
    3,928
    +1
    472
    If you get in trouble people on here will help.

    But I do know if its not absolutely correct it could run but not for long.
    There are some tricks to getting it right.

    Yeah its also a money pit...

  4. #4

    Join Date
    Mar 2010
    Location
    Long Island, NY
    Posts
    505
    +1
    35
    My first re-build of any motor was a Kawi 4-stroke. I had no formal mechanical training, no machine shop, no press, no lathe, no chain hoist, and no air wrench. I did have a good set of hand tools, a shop manual and a digital camera.

    It was a lot easier than I expected. I took a lot of photos as I disassembled it to use as a reference for re-assembly. I used the ski for another year or so, then sold it. Last I spoke to the new owner, it was still running. The job was do-able enough for me to buy a Kawi Ultra LX with a blown motor... fixed it, used it for a year, then sold it!

    As for Yamaha 4-stroke motors... they don't seem to break, so I never got a chance to re-build one. Maybe one of the 5 Yamaha motors in my fleet, or one of the other 6 Yamaha motors that I help maintain will go and I'll get a shot at a re-build. But I'm not holding my breath waiting.

  5. #5

    Join Date
    Nov 2009
    Location
    NC
    Posts
    783
    +1
    29
    His tech said it threw a rod.
    Confident enough in my skills, just don't want to have to buy a $200 tool here and a $200 there once I'm into it.
    With rebuilt drop-in motors being $2300 was hoping I could do it myself for a grand or so out of pocket.

  6. #6
    This is how I run a jetski shop in the desert nmpeter's Avatar
    Join Date
    May 2008
    Location
    Elephant Butte New Mexico
    Posts
    6,520
    +1
    1,269
    don't think you'll be able to meet your budget if the broken rod punched a hole in the block

  7. #7
    leejax01's Avatar
    Join Date
    Apr 2011
    Location
    Jacksonville
    Posts
    1,161
    +1
    98
    http://charleston.craigslist.org/boa/3712697661.html

    Check into it. Might still be there. I would swap engines and sell whatever is good in the blown engine to make whatever I can back.

  8. #8

    Join Date
    Nov 2009
    Location
    NC
    Posts
    783
    +1
    29
    Thanks for the lead Lee

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Water in oil tank, 2005 Waverunner FX HO
    By MarkM in forum Yamaha PWC Performance (4-stroke)
    Replies: 6
    Last Post: 07-18-2014, 04:16 PM
  2. FX vs FX HO Pump Advantage in my SUV1200 Conversion?
    By SUV1200 in forum Yamaha How To & FAQs
    Replies: 0
    Last Post: 07-16-2014, 09:57 PM
  3. Best dealer in S. Fla to get my 2012 FX HO Cruiser
    By yamacruiser in forum Yamaha Open Discussion
    Replies: 4
    Last Post: 06-12-2012, 10:15 AM
  4. Am I Getting In Over My Head?
    By Balance_Fighter in forum 4-Tec Performance
    Replies: 6
    Last Post: 07-21-2011, 08:31 PM
  5. Starter Issues - Way over my head
    By mrzippy in forum Yamaha How To & FAQs
    Replies: 5
    Last Post: 06-13-2010, 10:57 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
  •