Results 1 to 4 of 4
  1. #1
    "A Monsters Work is Never Done"
    Join Date
    Mar 2010
    Location
    Port Richey, FL
    Posts
    35

    Piston Size Question

    I have a 1200 PV engine and I see different size OEM pistons are available. How can I tell which size pistons are in the motor that I have? The ones in the parts manual are different numbers with different color designators. None of the numbers which indicate the size match what I have in the engine. Thank you for reading.


  2. #2
    icky002's Avatar
    Join Date
    Oct 2008
    Location
    nj
    Posts
    151
    Red: 79.899 ~ 79.902 (3.1456 ~ 3.1457)
    Orange: 79.903 ~ 79.906 (3.1458 ~ 3.1459)
    Green: 79.907 ~ 79.910 (3.1459 ~ 3.1461)
    Purple: 79.911 ~ 79.914 (3.1461 ~ 3.1462)

    1-5 cylinder gets an A piston
    6-10 cylinders gets a B piston
    11-15 cylinders gets a C piston
    16-20 cylinders gets a D piston


    Use the search feature. You will learn everything you are looking for.

  3. #3

    Join Date
    Oct 2009
    Location
    Ky
    Posts
    181
    If there oem cylinders, the number of the size will be stamped in top of the jug. If not get machine shop to measure and then use the manual to get proper size for your bore. The manual tells you what piston to use for various bore sizes

  4. #4
    "A Monsters Work is Never Done"
    Join Date
    Mar 2010
    Location
    Port Richey, FL
    Posts
    35
    Quote Originally Posted by theevette View Post
    If there oem cylinders, the number of the size will be stamped in top of the jug. If not get machine shop to measure and then use the manual to get proper size for your bore. The manual tells you what piston to use for various bore sizes
    Found the numbers, Thanks. I have (2) 10 and (1) 8. So they will all use the same size.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 951 piston size question
    By ldmoore87 in forum 2-Stroke Performance
    Replies: 4
    Last Post: 01-24-2015, 10:22 PM
  2. 01 genesis 1200 piston size question
    By polarisrider007 in forum Polaris Open Discussion
    Replies: 5
    Last Post: 08-08-2010, 07:38 AM
  3. Piston Sizing question
    By friscoboater in forum Polaris Open Discussion
    Replies: 5
    Last Post: 05-17-2010, 10:53 PM
  4. Gpr flattop piston (Kawasaki) question
    By MTRHEAD in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 12-10-2006, 09:18 PM
  5. Searched - Piston Wash Questions
    By SkiDaddy in forum Yamaha PWC Performance (2-stroke)
    Replies: 5
    Last Post: 11-06-2006, 04:38 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
  •