Results 1 to 5 of 5
  1. #1

    Piston Clearance Nikasil (OEM and FORGED) GPR cylinders

    Looking for recommendations on piston clearance on an NIKASIL cylinder (millenium coatings)

    1. OEM ART cast piston

    2. Wiseco forged piston

    Triple pipe race boat

    Currently I run Kawaski Flat Top OEM pistons in Miller cast iron sleeved GPR cylidners. They were setup at about .0045"-.005" and have run flawlessy for YEARS...

    I'm building a motor with all aluminum SPRAYED cylinders. I forgot what these cylinders like with Nik with OEM? Nik with Wiseco? all my experience lately has been iron liner motors (Sxr SJ's)

    This motor will be an all out single pipe 1200cc

    Thank you
    Last edited by MTRHEAD; 09-02-2013 at 08:51 PM.


  2. #2
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    Who is doing your porting?

  3. #3
    I've done all my porting for 20+ years
    (and for alot of others - 100+ Sxr's SJ's and/or cast sleeve stuff for these GPR's and LAMEYS)

  4. #4
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    The reason I ask is because those are usually the kind of questions you ask your portsmith, or the guy that is building your motors

  5. #5
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Location
    Houston, Texas
    Posts
    12,801
    +1
    450
    ck pm

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. FS 98-05 XL,GP 800 cylinder, piston brand new oem
    By ctct2118 in forum Yamaha Classifieds
    Replies: 2
    Last Post: 08-27-2010, 10:02 AM
  2. FS 4 Ported 1200 GPR cylinders w/flat top pistons
    By KawieGuy in forum Yamaha Classifieds
    Replies: 1
    Last Post: 08-25-2010, 09:38 AM
  3. FS WTT 2 GPR cylinders and pistons
    By Pacer in forum Yamaha Classifieds
    Replies: 2
    Last Post: 02-04-2010, 06:24 PM
  4. WTB: Good OEM 1200 PV #3 Cylinder and Piston
    By nightrider05 in forum Yamaha Classifieds
    Replies: 6
    Last Post: 02-03-2009, 12:02 AM
  5. kawa pistons into GPR cylinder
    By fraratti in forum Yamaha PWC Performance (2-stroke)
    Replies: 14
    Last Post: 11-21-2006, 02:28 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
  •