Announcement

Collapse
No announcement yet.

Run in period after top end rebuild

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Run in period after top end rebuild

    Hello Everyone,
    Just got my 1982 GS850GZ back on the road after a full top end rebuild and numerous other upgrades.
    There seems to be many opinions on how to break in a newly rebuilt engine, I've read / viewed quite a few on youtube, some called hard break in and others soft.

    Thought I'd post here and see what the general opinion is on how to break in the engine.

    Any advice greatly appreciated.

    Regards
    LJR47

    #2
    I'm a proponent of medium hard break in. I drive the bike around on city streets accelerating briskly and using a good bit of throttle. As the bike accumulates miles I increase load and rpm's. I don't think a specific technique is needed. Just don't baby or thrash the engine and you should be okay.

    If you haven't read the Mototune method you may want to check it out.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

    Comment


      #3
      Great thanks for the advice.

      Comment


        #4
        We ran them for 30 min sitting or on a dyno(cooling fans of course). Then shut down for a cooling period till cold. Checked the head torque/checked valves/ did leak down and changed oil. Went to the drag strip. Never lost one due to "break in".....lean on the big end? Oh yeah......

        Comment

        Working...
        X