Page 1 of 4 1 2 3 ... LastLast
Results 1 to 10 of 38
  1. #1

    Join Date
    May 2013
    Location
    Houston, TX
    Posts
    25

    Standard fixes on GP1200R

    Hello guys, just bought my first ski, a 2000 GP1200R. I took it out before i bought it and it took a couple minutes of cranking to get it going. I figured it was cold from sitting and needed to warm-up, which was the case. Then i took it out again today, again it took a little cranking to get it going but this time i also had to gas it when cranking just to get it going. I got it running, went out about 500 yards from the dock, and it just bogs down and dies. So im sitting out there cranking it with no success. Almost ran the battery out trying to get it to run. I would crank for 5 minutes at a time, it would fire very weakly a few times and die out. I would take the lanyard off for 5 minutes and try again. Went through that cycle for 20 mins or so till it finally runs like it did the very first time before i bought it. Ran fine all day, but when you leave it sitting for any amount of time more than 10 minutes and go back to start it, it acts like its ice cold. Can anyone weigh in on what this might be? I'm going to open it and check all the fuel lines, filter and pump. Check all the plugs and the wires. (Previous owner just replaced spark plugs 2 hours before i got it) and if those all check out i would assume the carbs are gunked up perhaps? And while I'm in there what are the notorious failures of a GP1200R i should look for/fix?

    Thanks for the help in advance


  2. #2
    Smokes's Avatar
    Join Date
    Dec 2012
    Location
    WBS
    Posts
    375
    +1
    47
    Welcome aboard.....sounds like carbs/filter/tank i would start by rebuild/replace/clean those and refill with fresh gas premix oil or running a compression test first

  3. #3
    showmepro1200's Avatar
    Join Date
    Sep 2006
    Location
    Jefferson City MO (Ride at Lake of the Ozarks)
    Posts
    524
    +1
    40
    Another welcome to the Hulk from fellow GP1200R owner - you should do lots of reading (and in the process, learning) here.

    Also - I hope youre not running that starter steadily for over 5-10 seconds at a time, or youll be replacing that part soon.

  4. #4

    Join Date
    Nov 2009
    Location
    NC
    Posts
    783
    +1
    29
    Fuel filter would be a quick easy check but I'm betting your carbs are gunked up. Would recommend adding the blue Marine Stabil to your ethanol-polluted gas, too. Had a GP760 that wouldn't start. Added stabil and it fired right up.
    Let us know what you find.

  5. #5

    Join Date
    May 2013
    Location
    Houston, TX
    Posts
    25
    Quote Originally Posted by showmepro1200 View Post
    Another welcome to the Hulk from fellow GP1200R owner - you should do lots of reading (and in the process, learning) here.

    Also - I hope youre not running that starter steadily for over 5-10 seconds at a time, or youll be replacing that part soon.
    Quote Originally Posted by toyterrific View Post
    Fuel filter would be a quick easy check but I'm betting your carbs are gunked up. Would recommend adding the blue Marine Stabil to your ethanol-polluted gas, too. Had a GP760 that wouldn't start. Added stabil and it fired right up.
    Let us know what you find.
    Quote Originally Posted by Smokes View Post
    Welcome aboard.....sounds like carbs/filter/tank i would start by rebuild/replace/clean those and refill with fresh gas premix oil or running a compression test first
    Thanks for the welcomes guys, I've heard this is the forum to be on if you own a ski and I have been reading all i can when I have time.

    Not running the starter for more than 5-7 seconds at a time. But if it needs to be replaced now, I'd rather take care of that before I hit the water again.

    I checked the filter yesterday and it was at the right level but the gas inside was dark. A more thorough check will be completed when I get back to my garage and tools.

  6. #6

    Join Date
    Feb 2013
    Location
    Panama City Beach, FL
    Posts
    29
    I'd bet alot of money the carbs are nasty inside. Sounds like it could be a fuel leak thats causing the system to have to prime itself again after sitting a while. While you're in there, check to make sure all the oil lines are secured properly.

  7. #7
    SMLaker's Avatar
    Join Date
    Sep 2008
    Location
    Virginia
    Posts
    127
    +1
    3
    Welcome fellow Y2K GP1200R. All the suggestions on here are great. Clean/Fresh gas...etc. But, you did what we have all done and bought a used ski. Unless it was properly maintained, you WILL eventually need to rebuild the carbs with genuine Mikuni rebuild kits. Learn how to do a pop-off test during the rebuilds. Check the color of your plugs after 10 hours use. They should be brownish/grey tips. If you see white....you're on the path to burn-out and get your butt back here and start asking more questions. I came here a newbie and have tore my ski down twice, rebuilt carbs twice, did some performance mods and now it's running great. One other place to look is a clogged cat-converter in the exhaust. This can cause hard starting and rough idle. Best mod for that is to do the cat-removal and replace with D-Plate & chip. Ride-On!

    Oh yea, the two things you should do to a stock GP1200R is: 1. Gid rid of the oil injection and go with a premix. That oil pump WILL fail one day and your engine WILL burn up. 2. Do the D-Plate & Chip and get rid of the cat.

  8. #8

    Join Date
    May 2012
    Location
    Central CT
    Posts
    46
    Don't forget the Wave Eater clips for the power valves and to lose the flapper on the fuel sending unit. If you stand on the tank a bit you can get the sending unit out without moving the tank. Fuel selector switch should go too.

  9. #9
    Almost's Avatar
    Join Date
    May 2010
    Location
    Cape May, NJ
    Posts
    778
    +1
    73
    Quote Originally Posted by toyterrific View Post
    Fuel filter would be a quick easy check but I'm betting your carbs are gunked up. Would recommend adding the blue Marine Stabil to your ethanol-polluted gas, too. Had a GP760 that wouldn't start. Added stabil and it fired right up.
    Let us know what you find.
    The reason it started is because you added alcohol to it which is essentially an octane booster and the fuel from siting lost some. What the bottle doesn't tell you is that the more you add the leaner your motor runs. Not good, It's always better to start with fresh fuel.

    Tips for fuel.
    http://www.hardcoresledder.com/forum...your-rush.html

  10. #10

    Join Date
    May 2013
    Location
    Houston, TX
    Posts
    25
    Thanks for all the suggestions guys!!! I went to wally world, picked up a 4 dollar hand primer bulb, stuck it on the fuel line that connects the filter to engine, pumped it about 7 times and bam, problem solved, starts and idles great every time. After looking through this ski I can tell the guy before me actually payed quite a bit of attention to detail and knew what he was doing. However, standard fixes as mentioned above:
    1. Wave eaters
    2. Oil pump delete
    3. stage 1 riva kit
    4. Mikuni rebuild
    5. Rejet the carbs while rebuilding

    also gonna seafoam it, like evey other engine ive ever bought


    hopefully those will produce a really nice ski that will last me a few years until i can afford an FX

    I searched pop-off tests but couldn't find a step by step breakdown of how to perform one, anyone know of a good thread?

    And what is a flapper on the fuel sending unit?

    Appreciate all the help guys!

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. starter prob on GP1200R...anyone??
    By havoc in forum Yamaha PWC Performance (2-stroke)
    Replies: 22
    Last Post: 04-02-2007, 08:46 PM
  2. gp1300r top end on gp1200r bottom end
    By sic fish in forum Yamaha PWC Performance (2-stroke)
    Replies: 1
    Last Post: 12-21-2006, 07:56 PM
  3. Stator Question on GP1200R
    By ramnj in forum Yamaha PWC Performance (2-stroke)
    Replies: 2
    Last Post: 05-17-2006, 11:51 AM
  4. Riva air filter on GP1200R
    By O-ToWn1300R in forum Yamaha PWC Performance (2-stroke)
    Replies: 7
    Last Post: 05-02-2006, 08:58 PM
  5. Handlebars on GP1200R
    By canadaxp in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 04-17-2006, 09:12 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
  •