I have a 2015 LS650 and am just about ready to do another valve check/adjustment.  

According to the owner's manual, the Clymer's manual, and the Suzuki shop manual, when the scheduled valve check/adjustment is done, there are also other maintenance items to do.  One of them is to re-torque the 4 cylinder head nuts, the 2 cylinder-head-to-cylinder nuts and the 2 cylinder-to-crankcase nuts.  And to get to the 4 cylinder head nuts, the valve cover has to be removed!

Do any of you really go through this at every valve adjustment?

Unless I have read all three manuals incorrectly, this is what they recommend with the same schedule as the valve adjustment ... around every 4000 miles.  Doesn't seem right to me.  Seems like a tremendous amount of work to do every 4000 miles!

Thanks for any advice you have.
Ron G

My GS500 owners manual suggest retorqing the head every 6000km which I do and it while it used to leak a bit at the base it eventually completely stopped.

On the other hand my S40 manual does not say to retorque the cylinder head and I've never done it and it does not leak, so maybe Suzuki know it doesn't need it. I used to do the valves every 6k kms but haven't done it for about 18k kms so far. But I do give the rockers a wiggle to feel that there is some room in there, not the most accurate but it works for me.

Thanks for your input.  Eases my mind.  All that work is unnecessary.

Ron G

I had no idea the oil filter could even be istalled bass ackwards,,
But, If ya try hard enuff,, Yes,, It Can,,
And it will almost every time, cost ya an engine