So I guess this is why they changed to plastic post 85...

Change of tac. 

Going to acquire a post 85 tail section (which I reckon looks better) and then attach the seat foam from my pre 85 seat to a post 85 plastic seat pan I have, then recover it. 

All this while watching the Scientology episode of South Park. Happy Days. 

Anyone got a part number for what goes in the red circles? The one at the top right obviously takes the rear hinge part, but Im thinking all three holes take rubber bungs of some sort. The parts fiche im looking at is unclear.

the one at top right is the rear hinge mounting point , but needs a  bung in there as well if you don't want to wear the metal parts

yes the other two need a blind bung  about 5mm thick x 12 mm ?

standard " 6 mm cage nuts " as used in rack equipment are used for most of the fixings to the seat ..and many other frame places

Thanks Charlie. Added them to an order from motorworks Ive been making as they are about the same cost as theyd be at clarke rubber etc, and I already needed stuff from motorworks....Like a 4.5x18" rear wheel  yeehaw

Floyd good video on how to reupholster K100 seat

https://www.youtube.com/watch?v=XZoq_D2kAZA
I did mine not long ago.
Regards Martin.

Mission accomplished...Old seat foam modified ans fitted to a post 1985 plastic seat pan. New foam, vinyl, stainless bolts and captive nuts, rubber bumpers.




Went with pop rivets and made some spreader plates out of HDPE garden irrigation pipe. 

Looks good, did you change the profile at all or just left it OEM.
Regards Martin.

great work Floyd ..

looks comfy

And after all that....

Doesn't bloody fit!!

well it kinda does Floyd

perhaps just a pad between tank and seat ...and call it designed nut crusher  protection

giggles

great effort so far

Looks good Floyd, I have the same problem with the motoco seat, and the gunfighter seat, might not look right on your machine but I made a lambs wool cover to fit, hides any gaps

Floyd I've never had a good look at the early seat mount set up on the Brick. Does yours have the plate with the mounting bolt? If so would it be possible to pack the front mounts out and slot or redrill the rear mounting plate? This might move your tank back enough to fix or partially fix your problem. You also might be able to crib the ducktail and seat mounts forward. 
Regards Martin.

After a good clean up with my new 18v drill and some brass brushes, and a can of 'rust converter' paint. Now for it to be reunited with its original foam (plus some new) and a new coat of marine vinyl.. Ah the joys of doing the same job twice - same same but different. 



Id fix the rust holes if I had a welder, but they will not be a problem...All the nuts are fine too, which is a bonus.

MartinW wrote:Floyd I've never had a good look at the early seat mount set up on the Brick. Does yours have the plate with the mounting bolt? If so would it be possible to pack the front mounts out and slot or redrill the rear mounting plate? This might move your tank back enough to fix or partially fix your problem. You also might be able to crib the ducktail and seat mounts forward. 
Regards Martin.

 To much mucking around in the end i reckon Martin, which is most unfortunate indeed. Anyways, on with the next plan! Ill get this beast back on these SE QLD roads again one day Im sure!

So, after taking the long way round...Ive now got my original seat and tail unit back on, only this time with fresh foam and vinyl 

doing a rock hard rs seat conversion also Floyd ..

do you have pics of your process ?

Not to hijack this thread, but where did you get those turn signals?  With the discontinuance of glass and turn lenses for the RS, there are many who would be interested in how you made them work on your bike.

Point-Seven-five wrote:Not to hijack this thread, but where did you get those turn signals?  With the discontinuance of glass and turn lenses for the RS, there are many who would be interested in how you made them work on your bike.

ebay link They are readily available on ebay mate

floyd wrote:And after all that....

Doesn't bloody fit!!

same here Floyd ,
just finished covering my comfort seat which came from Ol' Blue ( 89' k100LT ) and it has a bit of airflow in the front section . It now rest on Smurfette ( K1100RS) and still comfy as .