Results 1 to 4 of 4
  1. #1

    Join Date
    Mar 2011
    Location
    CORPUS CHRISTI
    Posts
    49

    Question debris in cylinder and burned powervalve question. 2001 GP1200R

    Today I pulled the cylinders off my 2001 GP1200R. I found this debris under the piston sitting on a ledge above the crank. I also took a look at the powervalve and it looks pretty burned up.

    Two questions. First, can I reuse this powervalve. 2nd, can I get away with out getting into the crankcase or do I need to open it up and check for more debris.

    I have no idea how many hours this ski has. The display does not work except for the MPH.


    http://http://www.greenhulk.net/foru...1200R-Rebuild.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	#2powervavleGH.jpg 
Views:	47 
Size:	72.0 KB 
ID:	234543   Click image for larger version. 

Name:	pic2powervGH.jpg 
Views:	41 
Size:	77.3 KB 
ID:	234544   Click image for larger version. 

Name:	debrisGH.jpg 
Views:	48 
Size:	95.0 KB 
ID:	234545   Click image for larger version. 

Name:	debrisshelfGH.jpg 
Views:	73 
Size:	129.4 KB 
ID:	234546  


  2. #2
    mudslanger's Avatar
    Join Date
    Jul 2010
    Location
    Huntsville Al
    Posts
    1,326
    +1
    49
    From the pics i would say separate the cases and check the crank bearings and give everything a good cleaning. looks like your going to need a piston you need to check the #2 cylinder for scratches. as for the power valves it looks like crud on them if you got a benchtop grinder with a wire wheel on it you can clean them with it. wile you got everything apart replace the crank seals. these parts are expensive and can add up to a lot of money quick you might want to make a list of parts your going to have to replace. sometimes it cheaper to get a used running or reman engine.

  3. #3
    urugol's Avatar
    Join Date
    Nov 2009
    Location
    Sydney, Australia
    Posts
    1,231
    +1
    3
    Get your carbs cleaned up and readjusted, you are running too lean. That middle piston will need some attention doesn't look real good from the side.

  4. #4

    Join Date
    Mar 2011
    Location
    CORPUS CHRISTI
    Posts
    49
    Thanks for the info. I have a good used piston and cylinder on the way. I was hoping I could get away without getting into the crank but I guess I might as well now that I'm this far.
    It is getting pricey but I figured this way, I would know the motor better

    ---------- Post added at 11:02 PM ---------- Previous post was at 11:00 PM ----------

    Thanks for the info. I have a good used piston and cylinder on the way. I was hoping I could get away without getting into the crank but I guess I might as well now that I'm this far.
    It is getting pricey but I figured this way, I would know the motor better

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Stuck on an island, water in cylinders and cant turn it over.
    By darrylgood in forum 4-Tec Performance
    Replies: 32
    Last Post: 07-10-2014, 12:05 PM
  2. Rxp-x water in oil and burning oil help
    By onelegman in forum 4-Tec Performance
    Replies: 9
    Last Post: 02-26-2012, 09:27 PM
  3. Replies: 2
    Last Post: 09-27-2010, 12:04 AM
  4. WTB Ready to use cylinder and matching piston for 2001 GP1200R
    By RetiredWW in forum Yamaha Classifieds
    Replies: 4
    Last Post: 09-14-2008, 08:50 PM
  5. 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

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •