BMW K bikes (Bricks)

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1Back to top Go down   Cloudy windscreen Empty Cloudy windscreen on Fri May 02, 2014 12:03 am

indian036

indian036
Life time member
Life time member
Hi all,

My newly acquired '85 K100RT has a very cloudy (orange/brown) colour on the screen. Not a riding problem as I look over it, but it would sure look nicer if it were clear.

Has anyone tried the kits they sell to fix cloudy headlight lenses for a screen?

Any other suggestions apart from a new one?

Thanks,
Bill


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Newest toy, slightly non-original
    

2Back to top Go down   Cloudy windscreen Empty Cloudy windscreen on Fri May 02, 2014 12:16 am

RT

RT
Life time member
Life time member
All I know Bill, is do not cheat and use an electric buffing wheel.
I think it's has to be a hand job so to speak, with varying grades of paste. I was having success with 1200grit wet.dry and Autosol and decided to turn the buffer loose. Cooked the screen properly. It was then that I decided I didn't like it anyway. There is a thread somewhere with photo's, can't find it just now. It is  a slow progressively finer task. (toothpaste, talc etc). Someone will find it for you.


__________________________________________________
2011 R1200RT
    

3Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 12:18 am

RicK G

RicK G
admin
admin
The miracle in a bottle is snake oil and really good if you are selling, it only lasts about a month.
I have used Brasso with reasonable results and I think Meguires do a polish for that sort of plastic.
If you use a power polisher it needs to turn slowly as a fast one like you use to buff paint on cars will burn the plastic.

I gave Charlie99 a very yellow screen and he managed to get it looking good, not perfectly clear but shiny and almost no yellow so he should know.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

4Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 12:34 am

duck

duck
Life time member
Life time member
Save your elbow, buy a new one.  Get black like all the later RSs had.  Much lower maintenance.

JMHO.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

5Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 12:38 am

Dale S

Dale S
Silver member
Silver member
I have done the screen on my 90 LT
Starting with 800 wet & dry paper, soapy water, going to 1000grit, then 1500grit. Then a good rub (by hand) with Maguires Plastic polishing compound, and finally a wax.
It was pretty scary looking until the polishing stage, then it looked great! Very Happy 
I gained enough confidence to do the headlights on my 540i.
Just be careful, take your time, and sand in long straight lines, not circles.


__________________________________________________
1990 BMW K100LT
 2003 BMW 540i
 1998 Ford f-150
    

6Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 3:19 am

92KK 84WW Olaf

avatar
Life time member
Life time member
I used a P2500 grade wet and dry on the car headlights, used very wet and gentlly, very effective, then polish.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles.
    

7Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 4:18 am

Bigsax

Bigsax
Gold member
Gold member
I just painted my RS screen black. Paint it from the inside, looks factory.


__________________________________________________
Cloudy windscreen Brick110
I stole this image, let me know if you want it back.
    

8Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 5:31 am

charlie99

charlie99
VIP
VIP
@RicK G wrote:The miracle in a bottle is snake oil and really good if you are selling, it only lasts about a month.
I have used Brasso with reasonable results and I think Meguires do a polish for that sort of plastic.
If you use a power polisher it needs to turn slowly as a fast one like you use to buff paint on cars will burn the plastic.

I gave Charlie99 a very yellow screen and he managed to get it looking good, not perfectly clear but shiny and almost no yellow so he should know.

yep still have it on rick ...thanks mate !

(besides some cracks that appeared near the mounting holes ...due to an enthusiastic  petrol over spray which hit the screen on a hot day ...don't know the science behind that ...sheesh )

the brasso worked well ..followed by maguires "plastix "

periodic polishing with ricks magic snake oil "automax" off ebay  seems to keep it in good condition

the screens I have seen (all old ones ) have slight imperfections throughout the plastic layers ...bit like stretch marks .....erm ...well that's a likeness ...not a derogatory statement

I guess if I kept the old bird about the speed limit this would be reduced somewhat ....
but hey ...if the old girl can do it ...im only too pleased to let her head loose every now and then  Cloudy windscreen 502531 

please remember this is the older "original " rt type of fairing screen ...rather than anything new .... 

Cloudy windscreen 1503890_10200254883734962_189261584_n
hope that helps


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OCloudy windscreen Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

9Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 5:53 am

Crazy Frog

Crazy Frog
admin
admin
Check this link  for the procedure


CF


__________________________________________________
Cloudy windscreen Frog15Cloudy windscreen Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

10Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Fri May 02, 2014 12:48 pm

Kyle10

Kyle10
Life time member
Life time member
This is what I use, along with microfiber cloths. 
Resurrected many a windshield and fairing part with it to showroom effect. 
I like it, as I don't have to commit to using sandpaper, which scares the bejeezus outta me. 
Cloudy windscreen Novus111


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

11Back to top Go down   Cloudy windscreen Empty Re: Cloudy windscreen on Thu Jun 19, 2014 4:55 am

rhyleyz

rhyleyz
New member
New member
I use Plexus. It cleans and polishes the winshield of my bike. It can also be used on helmets.

    

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