Results 1 to 4 of 4
  1. #1

    File the edge of a piston.

    The front power valve disintegrated into little pieces and got in the way of the piston. It left a bur on the top of the piston that is preventing it from cycling. A friend told me he thought I could gently file the edge and not have to replace it. This friend helped me get everything apart and now don't have time to help. I am not a mechanic and I am uneasy about trying to take a pile of parts to a mechanic. You guys have any advice how to properly file the head of the piston?

  2. #2
    800AMSOIL4U's Avatar
    Join Date
    Aug 2006
    Morgan Hill, CA
    Post up a picture so we can see how bad it is.

  3. #3
    Click image for larger version. 

Name:	2014-06-27 19.08.02.jpg 
Views:	57 
Size:	43.5 KB 
ID:	357924Click image for larger version. 

Name:	2014-06-27 19.04.51.jpg 
Views:	51 
Size:	74.6 KB 
ID:	357925Click image for larger version. 

Name:	2014-06-27 19.19.58.jpg 
Views:	58 
Size:	112.4 KB 
ID:	357926These are the best I have right now. I can try to take some better ones.

  4. #4
    GGG's Avatar
    Join Date
    Sep 2009
    Jersey Shore
    Gotta pull the cylinder off. I'm willing to bet the ring land got crushed and the ring is stuck now. I'd get a new piston and check the cylinder head for damage

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Is the part # for GPR piston/cyl sets for all 3?
    By jpa1300 in forum Yamaha Open Discussion
    Replies: 2
    Last Post: 06-20-2008, 09:21 PM
  2. i love the top of my pistons ,
    By Bone1050 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 11-28-2007, 05:20 PM
  3. How do i change the bendix and remove pistons
    By cretamk in forum Sea Doo Open Discussion
    Replies: 1
    Last Post: 07-14-2007, 10:10 PM
  4. How close to the edge ?
    By lugnut in forum 4-Tec Performance
    Replies: 3
    Last Post: 02-16-2007, 03:53 PM
  5. N E 1 burn the edges of their prop???
    By Pale Rider in forum 4-Tec Performance
    Replies: 9
    Last Post: 12-15-2005, 12:44 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