Results 1 to 3 of 3
  1. #1

    comp results on rebuild

    Well I just finished rebuilding the top end on a 2001 GP1200R and did a compression test on the motor (cold) and came up with about 116 on all three. Is this ok? I know the numbers should be higher on a warm motor. I did start the ski just to make sure it would fire and it started right up. I am going to stick it in the water and break it in today. I put 10 gal of gas mixed at 50:1 to run through it(still injected). Any opinions on how to go about it. Where I am at it really is a pain in the butt to have to stop somewhere and keep letting it cool down so I am not sure if there is anyway around that.


  2. #2
    XLTNoob
    Join Date
    Jul 2007
    Location
    Baytown, TX
    Posts
    400
    From my experience rebuilding 4 strokes, they usually have /decent/ compression until the engine is broken in, and the rings are mated to the cylinder. From there the compression should get better.

  3. #3

    Join Date
    Dec 2006
    Location
    johnstown pa
    Posts
    146
    make sure you use a good compression gauge!i read 105 with a cheap gauge ,and 125 with a good snap on gauge!in this case you get what you pay for.i learned the hard way ,now i got both

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Well Boyz got new GPS results!! on the 06 RXP again!!!
    By NeverEndn in forum 4-Tec Performance
    Replies: 115
    Last Post: 07-26-2006, 11:10 AM
  2. new rr imp results on stock ecu/injectors
    By mxl16 in forum 4-Tec Performance
    Replies: 18
    Last Post: 07-17-2006, 09:53 PM
  3. Question about Riva Results on there stage II Kit? Did they
    By Water4fire in forum 4-Tec Performance
    Replies: 8
    Last Post: 04-10-2006, 12:50 PM
  4. needle bearings on rebuild kit
    By RXPNJ in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-15-2005, 08:00 AM
  5. Here's my results on IC's.. Rotax vs Riva
    By Therock in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-13-2005, 07:33 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
  •