Results 1 to 10 of 10

Thread: Valve Adjustment for F650 Twin

  1. #1
    Old Rider - OK Mechanic 105258's Avatar
    Join Date
    Mar 2004
    Location
    Teulon Manitoba Canada
    Posts
    215

    Valve Adjustment for F650 Twin

    Is there a DIY proceedure for valve adjustment on a 650 Twin like there is in the camhead site ?
    David Nicholls
    Teulon Manitoba - Canada

    2015 R1200GSA-LC

  2. #2
    SURVIVOR akbeemer's Avatar
    Join Date
    Jul 2007
    Location
    Big Sky Country
    Posts
    7,588
    Not on this site that I am aware of. Maybe over on F800.com.

    A Haynes manual may be your best bet.

    Paul Glaves posted a piece recently about adjusting the valves on Voni's F800S for the first time(or maybe it was an article in the ON). You should be able to track that down. Seems that getting to the valves is 90% of the issue. I seem to recall that he learned two lessons: 1) follow the procedure provided in the manual. He skipped a step about removing a part only to findout that it was required after-all, and, 2) After the initial 600 mile check you can double the recommended mileage between checking the valves; they do not seem to vary much.

    This is all from memory.... find his post to confirm my memory.
    Kevin Huddy
    The Outpost, Silver City, Montana

  3. #3
    Registered User
    Join Date
    Aug 2008
    Location
    North Carolina
    Posts
    195
    Here's two threads:

    http://www.ukgser.com/forums/showthread.php?t=232909

    http://www.advrider.com/forums/showthread.php?t=623587

    There is also a video or two on YouTube....

    The clearance does not change quickly, so for most folks it does seem to be just a "check" which is good, because actually swapping out the shims is a bit of work.

    Apparently the two things that make the clearance change more quickly are:

    * running in dirty envrionments - make clearnace tighter due to wear on valves/seats

    * lots of high RPM operation - make clearance looser due to wear on valve train

    Leading to the obvious conclusion of keeping the throttle pinned in dusty environments ....
    Last edited by jimbob59; 09-14-2011 at 01:10 PM.

  4. #4
    Registered User bmwgsrider's Avatar
    Join Date
    Sep 2005
    Location
    Amarillo, TX
    Posts
    538
    Paul write up on the valves was in the BMW ON on Voni's F800 which is a little different from what Paul told me over the weekend on the F650 Twin.

    I just recently purchased a Haynes Manual for the F650 Twin for a good price on this website:

    http://www.themotorbookstore.com/

    The Haynes manual is a good book to have.

    I have over 9K miles and will do a valve check for the first time sometime....

    You should do a write up when you do yours.
    Bye bye 2006 F650 GS for a 2011 F650 GS.

  5. #5
    Old Rider - OK Mechanic 105258's Avatar
    Join Date
    Mar 2004
    Location
    Teulon Manitoba Canada
    Posts
    215

    Thank You All

    Thanks to everyone for there help. I will order the haynes manual for the bike. Between the manual the process shown in the 800 site I will be able to accomplish this task....

    Thanks again
    David Nicholls
    Teulon Manitoba - Canada

    2015 R1200GSA-LC

  6. #6
    SURVIVOR akbeemer's Avatar
    Join Date
    Jul 2007
    Location
    Big Sky Country
    Posts
    7,588
    As the owner of a new F650GS (or at least responsible for the maintenance.... it's my wife's), I'd appreciate you posting your experience doing this job..... with a bunch of pictures.
    Kevin Huddy
    The Outpost, Silver City, Montana

  7. #7
    Old Rider - OK Mechanic 105258's Avatar
    Join Date
    Mar 2004
    Location
    Teulon Manitoba Canada
    Posts
    215

    When I do it

    I will try to do that when I get the manual and it is time to do the valves.
    David Nicholls
    Teulon Manitoba - Canada

    2015 R1200GSA-LC

  8. #8
    Registered User
    Join Date
    Aug 2008
    Location
    North Carolina
    Posts
    195
    Paul's article, from BMW ON 07/2011, on adjusting the valves on F800S is here:

    http://digital.turn-page.com/issue/35371/49

    But I don't see any mention of him thinking the 12K mile interval being too conservative ???
    Although from what I hear, the lash does not change much.........

  9. #9
    wanderer
    Join Date
    Jun 2009
    Location
    Bridport Vermont
    Posts
    367
    FWIW I've got over 18k miles and no need for adjustment yet.

    Motorcycle engines...especially oil/water cooled ones need less and less maintenance.

    Progress!

  10. #10
    SURVIVOR akbeemer's Avatar
    Join Date
    Jul 2007
    Location
    Big Sky Country
    Posts
    7,588
    It appears from what I see over on the F800 forum that people are going at least 24K miles without having to make any adjustment. One lad said he's checked his regularly and is up over 70K and has yet to need to change anything.
    Kevin Huddy
    The Outpost, Silver City, Montana

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •