Not sure what these are called?  can someone tell me and roughly what I should pay for them?  I would think it would be hard to find used ones in good condition?  or do you guys remove them all to together?

Doubt you'll find decent any used ones.

About $30 each new from a dealer in the US: http://www.bmwmcchattanooga.com/products/BMW-Motorcycles/1988/Gasket/1043674/46631450620.html

I wouldn't bother replacing them.

That's just how mine have looked like since buying the bike. Haven't bothered replacing them myself.

Thanks guys, I guess its toss them out...maybe someday I will replace them...

I've got them in my bike Marty , they don't seem to last very long , over the life of my bike ( original owner 1987 ) I've had about 8 sets , for a little while I left them out but the view down to the road annoyed me , my mechanic tells me out of all of their customers I'm the only person that orders them

JR

If your roads get salted in winter, then it's a good idea to keep them.

Paul.

These are called fork boots. I bought a set off E-bay, but am not using them because I retrofitted fork mounted road lights from a K100.  

Not too sure if the boots survived the design in later years, some people have claimed they were removed to facilitate under tank cooling (along with the cold air scoops).

It's not clear to me how much the boots contribute to the over-heating problem, and it seems a bit of a stretch to assume their removal will instantly solve the problem. It certainly hasn't on my bike.

No matter. I'm planning on adding insulation to my bike in an effort to keep the heat from reaching the tank in the first place. In theory, the K bike was a naked design with faring(s) added later. Unfortunately, little consideration was given to heat build-up.

cut them jes

we don't need the heat retention  from their use "downunder"

they come with the retention part attached if you need to go back

they usually fit up with a few screws to the under side intermediate radiator-main fairing piece

the little ports (holes )  in front of those were designed for the "mentioned " breather tubes for forced air cooling into the fairing proper ...but haven't seen them listed in the "after market" suppliers pages (motobins etc )
but I have seen them  as designed from a good member in here ...

our main issue down here is the heat bubble that is caused by the fairing and screen drawing the heat of the engine - radiator up high for the warmth of the rider

could well be an advantage in cooler climates

Just changed mine £46.96 including P&P for a new pair from Motor Works Yorkshire.  It means removing and refitting the forks, but cuts out the draughts on cold winter rides.  

regards

geordie boy