While re-assembling my '10 after a valve clearance check I find a piece
of black, hard rubber, 13/16ths square, 9/16ths thick, under the bike
on the left side.

It seems to have adhesive on one side, like it was stuck to something.
It looks like a 'bumper' of some sort.

Anyone know where it came from?

Check the bottom of the seat?

Sounds like the rubber bumpers located right behind the gas tank under the seat, there should be two of them.

Pic?

Sounds like the rubber bumpers located right behind the gas tank under the seat, there should be two of them.

Yep, both of mine came off and I had to use some double sided tape to put em back on.

Clumsy oaf!

Clumsy oaf!

At least I didn't cut my finger open slicing a lime.   

Yes, but there was alcohol involved with the lime....

Yes, but there was alcohol involved with the lime....

 

Sounds like the rubber bumpers located right behind the gas tank under the seat, there should be two of them.

 tthompsr  hit the nail on the head.

And yes I've had to glue mine too. No alcohol involved.

Sounds like the rubber bumpers located right behind the gas tank under the seat, there should be two of them.

 tthompsr  hit the nail on the head.

And yes I've had to glue mine too. No alcohol involved.

Too bad...

I'll drink to that.

Where are these supposed to go?  I just found one of mine.....Nothing stuck to the tank.

If it is shaped like a shallow 'Vee' with a radius inside, it is what others have said, one of the bumpers that goes on the fuel tank for the saddle to rest on. Otherwise we're gonna' need a photo to make better guesses....

Brian

While re-assembling my '10 after a valve clearance check I find a piece
of black, hard rubber, 13/16ths square, 9/16ths thick, under the bike
on the left side.

It seems to have adhesive on one side, like it was stuck to something.
It looks like a 'bumper' of some sort.

Anyone know where it came from?

No need for a picture it is exactly as described. Sides are smooth, no marks. Edges are sharp. Rubber is hard
but not plastic hard. A little black hunk of rubber.

If it is shaped like a shallow 'Vee' with a radius inside, it is what others have said, one of the bumpers that goes on the fuel tank for the saddle to rest on. Otherwise we're gonna' need a photo to make better guesses....

Brian

What direction are these supposed to face?  Noticed there's an arrow on the side.  Mine had come unstuck as well and I took them out to see if the angle toward the tank had lessened. 

Beats me- both of mine fell off the bike very early on. They will fit in the slot either way.

If you face one in one direction and the other in the opposite direction, you are guaranteed to have a 50% correct direction overall. 

Brian

What direction are these supposed to face?  Noticed there's an arrow on the side.  Mine had come unstuck as well and I took them out to see if the angle toward the tank had lessened.

I had my seat off over the weekend and I snapped a couple of pics to show how these things are installed.

Unbelievable- is that how they are really supposed to install? Amazing because mine have been sitting there with the radius facing 'up' for the last 60K + miles. Your way does make sense though and I can see where the bumpers of the seat have been resting on the 'top' of those bumpers. Makes me wonder what I have been sitting on for the last four years or so (easy boys!).

Thanks Conrad!

Brian

I had my seat off over the weekend and I snapped a couple of pics to show how these things are installed.

I always knew you were installing them wrong.  I didn't tell you because you won't take me with you on long trips. I hope your butt still hurts. 

Kirby

Unbelievable- is that how they are really supposed to install? Amazing because mine have been sitting there with the radius facing 'up' for the last 60K + miles. Your way does make sense though and I can see where the bumpers of the seat have been resting on the 'top' of those bumpers. Makes me wonder what I have been sitting on for the last four years or so (easy boys!).

Thanks Conrad!

Brian