Hey there, in calling on anyone has done a successful valve adjustment on our bikes.
Attempting to do it the first time on my 2006 gs500f and going off of this tutorial
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.gstwin.com/adjust_valves.htm&ved=0CCEQFjACahUKEwi509q65ffIAhXGGT4KHZYeDkk&usg=AFQjCNG1cAUaMLzR1u61ZSfz7-IWxdQGGw&sig2=JUtlSWXvSOUwhhAOXpZIYA
The 2004+ model has the single pickup signal generator and when I line up my crank shaft with the R-T marks, it looks like this
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214029741_zpsqxtoga6f.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214029741_zpsqxtoga6f.jpg.html)
And my cam shaft notches look like this
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214043370_zpsbjv5brmv.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214043370_zpsbjv5brmv.jpg.html)
Notice the cam shaft notches are slightly angled. Now in the tutorial his cam shaft notches look totally horizontal. I also have seen them horizontal in other videos.
Should mine be that way?
I can line up my crank shaft like this and get cam shaft notches totally horizontal with the engine case
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214134687_zpsly69il7o.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214134687_zpsly69il7o.jpg.html)
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214201286_zpsmumhbr0g.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214201286_zpsmumhbr0g.jpg.html)
Is this a timing issue? My clearances are more loose when lined up horizontally.
Go by the camshaft position...notches exactly horizontal....the signal generator is just to "get you in the ball park" but line up the camshafts notches...this way the cam lobes are at the widest possible clearance...
If you do it this way...the cams lobes will either be directly away from the shim...or 90 degrees to the shim....You can check 3 of the 4 valves in one cam/crank position...you then rotate the crank until you get to the second position the check the last (4th) valve...
turn the engine a couple times before you check the clearances..to get everything to seat...only turn the engine the way it normally rotates...if you go past your mark...go all the way around in the same direction...do not reverse rotation or else your measurements will not work out...
Sometimes there is a lot of oil between the cam and the shim..this can make the clearance seem a bit tight, because the oil is some measurable thickness...try to clean it off as much as possible...also oil can build up between the shim and the bucket, giving a false reading..
another trick which works for me...maybe will work for you...
It is really hard to insert a really thin feeler gauge between the cam and the shim...the feeler tends to bend rather than go in...
So....start with your smallest feeler (.03) mm...use the motion pro valve tool to press down on the bucket..causing a large gap between the cam and the shim...now insert the .03mm feeler..it will go easily because you are holding the valve open with the tool....slowly let off of the tool, allowing the valve to close...making the clearance small...with the feeler now in between...
The .03 should be able to slide back and forth with minimal "grabbing"...If it does, you know the clearance is .03mm or greater...if it gets "caught" fast, between the cam and the shim...you know the gap is less than .03mm and you need to change out the shim.
You can then do the same for a .04MM feeler...open the valve a bit with the valve tool..insert the .04 feeler... see if it slides, or grabs...you can work your way all the way up to the .08mm....this is a go-no go way of measuring...if the .08 mm still slides easily...then you also need to change out the shim...
Let's say for instance the .07 feeler is the smallest size which 'grabs'..then your clearance is .06mm....
I find this works better than trying to insert the feeler sideways between the shim and the cam... and sliding the feeler around seems to clear out some of the oil film in there..
I hope I didn't make this seem needlessly more complicated than it really is. Once you've done it once..it will be easy thereafter.
Cookie
Quote from: GsSA_TX on November 04, 2015, 03:37:33 PM
Hey there, in calling on anyone has done a successful valve adjustment on our bikes.
Attempting to do it the first time on my 2006 gs500f and going off of this tutorial
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.gstwin.com/adjust_valves.htm&ved=0CCEQFjACahUKEwi509q65ffIAhXGGT4KHZYeDkk&usg=AFQjCNG1cAUaMLzR1u61ZSfz7-IWxdQGGw&sig2=JUtlSWXvSOUwhhAOXpZIYA
The 2004+ model has the single pickup signal generator and when I line up my crank shaft with the R-T marks, it looks like this
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214029741_zpsqxtoga6f.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214029741_zpsqxtoga6f.jpg.html)
And my cam shaft notches look like this
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214043370_zpsbjv5brmv.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214043370_zpsbjv5brmv.jpg.html)
Notice the cam shaft notches are slightly angled. Now in the tutorial his cam shaft notches look totally horizontal. I also have seen them horizontal in other videos.
Should mine be that way?
I can line up my crank shaft like this and get cam shaft notches totally horizontal with the engine case
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214134687_zpsly69il7o.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214134687_zpsly69il7o.jpg.html)
(http://i1190.photobucket.com/albums/z450/chris_lessing1/Mobile%20Uploads/IMG_20151103_214201286_zpsmumhbr0g.jpg) (http://s1190.photobucket.com/user/chris_lessing1/media/Mobile%20Uploads/IMG_20151103_214201286_zpsmumhbr0g.jpg.html)
Is this a timing issue? My clearances are more loose when lined up horizontally.
Thank you so much! Exactly what I needed to hear!
Agreed....go off the cams
Those marks on the rotor are not always accurate. I compared one with a TDC indicator........... it was around 6deg out.
Hate to say it but with motorcycles i have hardly any experience working on. I change my oil, clean my air filter changed my plugs.
i have a 2005 GS500F with 19,500 miles. I have done all other maintenance but the valve adjustments.
I runs good, just put 100 miles on it today.
Question is.....does it really need to be done? How much does it run to have it done at a shop? How do i know they need adjustment without taking it apart?
Thanks
J.T.
Found YouTube video.
looks like going to have to take to dealer.
Valve check is very important on air cooled motors such as the GS500. If the wear, and the clearances get too tight or no clearance at all, you can burn the exhaust valve(s).
19K is a long time without checking! I go longer than the recommended in the manual, but I do check every winter.
It is a PITA sort of job, because you have to remove so much crap off the bike in order to get down to the valves....But..OTOH...the dealer is going to charge by the hour, and it is time consuming...
Also...I'm not sure I would trust the dealer's mechanic to actually check, and change out, and recheck properly....If you do it yourself, it will be done correctly...
Just my 2c
Cookie
Quote from: GS500F-05 on April 23, 2016, 02:17:56 PM
Hate to say it but with motorcycles i have hardly any experience working on. I change my oil, clean my air filter changed my plugs.
i have a 2005 GS500F with 19,500 miles. I have done all other maintenance but the valve adjustments.
I runs good, just put 100 miles on it today.
Question is.....does it really need to be done? How much does it run to have it done at a shop? How do i know they need adjustment without taking it apart?
Thanks
J.T.