SBT Jetski Engines, Parts & Accessories

Results 1 to 2 of 2
  1. #1
    Jun 2007

    Default Stock bore size for a 650?

    Hey everyone! My machinist is boring the cylinders on my 91 VXR 650. But before he does, he needs to know the stock bore size. Right now, he is measuring 79.5mm. What size did this cylinder start as? I thought it was 79mm. So basically, if it is at 79.5 now, and he needs to bore an additional 0.50, I will need to order a 1.0mm oversize kit from SBT, correct?

  2. #2
    Mar 2003

    Default Re: Stock bore size for a 650?

    Stock was 77. Time to resleeve or get a cylinder exchange kit.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Will 11-19 pitch work with stock VXR 650
    By splasher in forum Yamaha
    Replies: 0
    Last Post: 07-29-2004, 11:15 AM
  2. Stock bore size??
    By Cmobil12 in forum Tigershark
    Replies: 1
    Last Post: 07-08-2004, 01:09 PM
  3. BORE SIZE ON 650
    By HONEDOUT in forum Sea-Doo
    Replies: 1
    Last Post: 03-28-2004, 10:50 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