Results 1 to 9 of 9
  1. #1

    Gp1200r water in cylinders

    Hi, I have just rebuilt my 1200r and it runs good out of the water, but when i run it in water, the cylinders fill up with water.Can anybody help?


  2. #2
    mudslanger's Avatar
    Join Date
    Jul 2010
    Location
    Huntsville Al
    Posts
    1,326
    +1
    49
    Is the water getting in all cylinders.
    Check for water in the bottom of the hull if the water isn't entering the engine through the carbs a place to start would be checking the head gaskets and exhaust gaskets.

  3. #3
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    Quote Originally Posted by mudslanger View Post
    Is the water getting in all cylinders.
    Check for water in the bottom of the hull if the water isn't entering the engine through the carbs a place to start would be checking the head gaskets and exhaust gaskets.
    Ive seen the cylinder base gaskets on backwards too

  4. #4
    Thanks for that. I think WFO may be right. Water is in all 3 cylinders. Anybody any other suggestions before I start pulling engine apart?. Or do I go with WFO.

  5. #5
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    either pressure test the cooling system to find the leak, or start taking things apart... pull head first and check the gasket, then the exhaust mani, then the cylinders

  6. #6
    whats the history on the engine, was it a catastrophic failure? any exhaust components cracked? any gaskets put on backwards during assembly would cause a leak. were any cylinders replated? if so the cylinder base could have porosity from the chemical wash? just guessing here at this point. looks like you`ll have to retrace your assembly steps and look for the leak...

    hahaha rich beat me to it...its all good...lol...

  7. #7
    a pressure test would determine whether a gasket would be on backwards right, i.e. pressure dropping?

  8. #8
    New piston and 2nd hand cylinder in no 3, had to strip right down to get filings of metal from old piston out of the bottom of the engine. I would say the ski is pumping the water into the engine, when started on the hose or in water, rather than something leaking. lots of water. I had it in the lake with plugs out and when turning over water was pumping out of cylinders.

  9. #9
    mudslanger's Avatar
    Join Date
    Jul 2010
    Location
    Huntsville Al
    Posts
    1,326
    +1
    49
    You need to get that water out ASAP before you ruin the crank bearings

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. my xlt 1200 is taking in water, in cylinders
    By dropem631 in forum Yamaha PWC Performance (2-stroke)
    Replies: 13
    Last Post: 04-03-2010, 01:34 PM
  2. 1992 650SL engine issues - water in cylinders
    By bnovak in forum Polaris Open Discussion
    Replies: 17
    Last Post: 05-19-2008, 07:39 AM
  3. PLEASE HELP! I have water in cylinders what do I do
    By bendusastre in forum Sea Doo Open Discussion
    Replies: 14
    Last Post: 05-01-2008, 06:11 PM
  4. 06 rxp water in cylinders and oil help please
    By blue5speed in forum 4-Tec Performance
    Replies: 7
    Last Post: 01-04-2008, 09:45 AM
  5. Keep Getting Water In Cylinders
    By ezrider060 in forum 2-Stroke Performance
    Replies: 2
    Last Post: 06-09-2007, 12:21 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
  •