Results 1 to 3 of 3
  1. #1

    Exclamation Gp 1200 problems

    My gp 1200 has trouble starting and will only start with some help, it has sat for some time. when i do get it to start it will only run with the choke on half way or more. i tryed it on the lake and it wont go to full potential and i checked the cylinders and the the front one is fouled and the other two are burning clean. Could this have something to do with the airbox?
    I checked the compression and its the same for all the cylinders.

  2. #2
    Remove choke plates and put primer kits in Rebuilt carb while you are there.

  3. #3
    zx11rider's Avatar
    Join Date
    Jun 2009
    Cape Coral
    the old gas sitting in the carbs has fouled them up the low speed jets are probally plugged clean out the carbs and rebuild.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 99 xl 1200 limited problems
    By cfstettler in forum Yamaha Open Discussion
    Replies: 0
    Last Post: 09-10-2007, 11:56 AM
  2. Pro 1200 Starting problems
    By webworks in forum Polaris Open Discussion
    Replies: 3
    Last Post: 08-07-2007, 02:53 AM
  3. PRO 1200 Seat Problems
    By webworks in forum Polaris PWC Performance
    Replies: 14
    Last Post: 07-17-2007, 07:31 PM
  4. Any problems with 120 mains on a 1200 GPR?
    By mrbtd in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 06-27-2007, 02:10 PM
  5. 02 GP 1200 engine problems
    By ADAMBOMB in forum Yamaha PWC Performance (2-stroke)
    Replies: 8
    Last Post: 06-23-2006, 12:22 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