Valve Adjustment for F650 Twin

105258

Old Rider - OK Mechanic

• Sep 13, 2011

• #1

Is there a DIY proceedure for valve adjustment on a 650 Twin like there is in the camhead site ?

 

akbeemer

SURVIVOR

• Sep 13, 2011

• #2

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.

 

J

jrwooden

Member

• Sep 14, 2011

• #3

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: Sep 14, 2011

bmwgsrider

Member

• Sep 14, 2011

• #4

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.

 

105258

Old Rider - OK Mechanic

• Sep 15, 2011

• #5

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

 

akbeemer

SURVIVOR

• Sep 15, 2011

• #6

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.

 

105258

Old Rider - OK Mechanic

• Sep 15, 2011

• #7

When I do it

I will try to do that when I get the manual and it is time to do the valves.

 

J

jrwooden

Member

• Apr 5, 2012

• #8

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.........

 

V

vtbob

wanderer

• Apr 10, 2012

• #9

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!

 

akbeemer

SURVIVOR

• Apr 10, 2012

• #10

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.