Results 1 to 4 of 4
  1. #1

    66e 800 engine someone please school me in pistons & rings for the nikasil barrels

    hey guys this is the 1st ski i had to deal with nikasil bores and need some schooling
    now i brought it 1/2 apart and decided to tear it down as it needed a new front seal (water was in the front case and had a rusty mess around fnt seal)
    piston pics att i was going to just put new rings in while it was apart and saw the abc piston thing so my barrels read 4 & 6 so do all three piston sizes use the same ring set? there was only the one ring read listed in the parts finder.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	019 - Copy.jpg 
Views:	48 
Size:	85.3 KB 
ID:	305317  

  2. #2
    white streak on the piston must have been from the flash

  3. #3
    powerstroke specialist mikegp's Avatar
    Join Date
    Mar 2011
    yes , rings are the same.

  4. #4
    mudslanger's Avatar
    Join Date
    Jul 2010
    Huntsville Al
    When you are building any motor you should put the ring in the cylinder and push it to the top of the cylinder with the piston and clearance the ring gap. If it doesn't have enough end gap you can file it or grind it to achieve proper end gap.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. can I trow an 800 engine instead of the original 760 on a wave runner? Help please
    By Nico1968 in forum Yamaha PWC Performance (2-stroke)
    Replies: 3
    Last Post: 08-12-2012, 09:05 AM
  2. Can someone please
    By meeper in forum 4-Tec Performance
    Replies: 0
    Last Post: 05-16-2007, 07:26 PM
  3. Help with engine question please!
    By aleblue in forum Yamaha Open Discussion
    Replies: 5
    Last Post: 03-10-2007, 12:03 PM
  4. Water in engine help please
    By maddie50 in forum Sea Doo Open Discussion
    Replies: 4
    Last Post: 10-16-2006, 12:05 PM
  5. someone please help this is getting costly
    By benny in forum Yamaha PWC Performance (2-stroke)
    Replies: 19
    Last Post: 04-18-2006, 03:56 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