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51Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Wed May 20, 2015 2:12 pm

Motorbike Mike


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Lots of orange about!! 

JJ Cobas K100R Flying Brick - Page 2 Cimg2517

and a new dash from Translogic.

JJ Cobas K100R Flying Brick - Page 2 Cimg2518

    

52Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue May 26, 2015 7:08 pm

Motorbike Mike

Motorbike Mike
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I finally got around to fitting the filler cap-much better.

JJ Cobas K100R Flying Brick - Page 2 Cimg2519

....and before anyone mentions it, "Yes I know the tank needs wet-flatting and polishing!"

    

53Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu May 28, 2015 6:27 pm

floyd

floyd
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Man this is awesome.

Loving it a lot! Cant wait to see it!  Also like the look of the airhead you sold.

Anyone know where the real Cobas bikes are these days?


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

54Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Fri May 29, 2015 9:14 am

Motorbike Mike

Motorbike Mike
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@floyd wrote:Man this is awesome.

Loving it a lot! Cant wait to see it!  Also like the look of the airhead you sold.

Anyone know where the real Cobas bikes are these days?
Thanks.
I do have sellers remorse when I think about my twin.  JJ Cobas K100R Flying Brick - Page 2 177381

I've tried so hard to find where the original bikes are (there are 2) but to no avail.
On one line of enquiry I was given the email address of the well known journalist Alan Cathcart. He'd ridden one of the bikes way back....read on.

Hi Alan,
I hope you don't mind me contacting you but this picture I've attached of you has started me on a journey......
Having seen your picture riding the Cobas BMW K100.I thought it would be good idea to build a replica (as near as I could get) of the bike.

I was wondering if you could remember what it rode like,was it quick,did it handle OK,how much development went into the engine etc. I'd be grateful for anything you could remember but understand it's a fair while back.
I also would like to ask if you have any information on the bike's present whereabouts and where it was built? The hardest part to get right is the fairing and I'm sure that the mould still exists somewhere in Spain. I've asked and emailed so many people but not managed to gain any useful information so far.

The bike has been accepted,on the proviso it looks correct,to ride at the Bikers Classic at Spa in July so I've still got lots of hours to put in before then. The engine is running and I did a track day at Cadwell last Friday and it performed well for an 80's heavyweight but it will need to go for the fueling to be mapped as it's all over the place due to some engine modifications. Time is running short!!

JJ Cobas K100R Flying Brick - Page 2 Ccf15110



[size=15]Hi, Mike,
 
Sorry, but I have to stay right out of this.
 
The owner of the bike today (actually, of both such bikes made) has a very negative take on replicas of the bikes in his collection. Therefore, I’m afraid I cannot do anything to help you in this project.
 
Alan Cathcart


...so it's a dead end for now.[/size]


Thanks Alan !

    

55Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Fri May 29, 2015 9:41 am

Motorbike Mike

Motorbike Mike
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I turned up this image of the bike in endurance trim and as I will occasionally ride it on the road,a light bracket was made from aluminium.

JJ Cobas K100R Flying Brick - Page 2 1984_m11


JJ Cobas K100R Flying Brick - Page 2 Cimg3110


I'm about to finish the bracket now and make a sub-loom.

    

56Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 4:45 am

Motorbike Mike

Motorbike Mike
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To try and keep the bike as true to the Cobas bike as possible,I've changed the rear end for an early Mono set up. As one alteration creates another ten,I've had to make another exhaust system because the Mono swing arm is 40mm shorter, the back wheel touched the link pipe. 
I've used K1200RS headers that are 4mm larger in diameter but had to modify around the lump above the gear lever.

JJ Cobas K100R Flying Brick - Page 2 Cimg2610

The bodywork is painted but needs decals.

JJ Cobas K100R Flying Brick - Page 2 Cimg2510

JJ Cobas K100R Flying Brick - Page 2 Cimg2511

    

57Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 5:19 am

charlie99

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good tip about the k1200 headers mike

that should make it flow a little differently 

still stunned that the k1100 headers  are "fixed in place" manifold adaptors ...and the short curved # no 4 pipe doesn't enter at the same angle as the rest ....no wonder that they crack along the length

keep at it


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OJJ Cobas K100R Flying Brick - Page 2 Au-log10

"redframe" rs "bitsa"  with many contributions from the k100 community ,,with many thanks
    

58Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 5:24 am

floyd

floyd
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JJ Cobas K100R Flying Brick - Page 2 Cimg2332


What triple clamp is that?


Bike is looking awesome mate.


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

59Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 5:38 am

Motorbike Mike

Motorbike Mike
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It's a stock K100 16v item. I welded some thin plate on to cover the holes.

    

60Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 8:57 am

Motorbike Mike

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This is what happens when you think to yourself "A bit of cut & shut and it will be OK"
You then stand back and realise it isn't OK and major alterations are required for the right look as it needed a very full looking bottom half.

JJ Cobas K100R Flying Brick - Page 2 Cimg2611

JJ Cobas K100R Flying Brick - Page 2 Cimg2613

    

61Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Jun 07, 2015 9:18 am

floyd

floyd
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Great basic write up of the JJ Cobas K bikes (link)

Also includes the interesting fact that the (ive never seen it called this anywhere else) BMW CDS (Compact Drive System [engine, gearbox, drive shaft, final drive]) only weighs 76kgs dry. 

Says they wrang 122hp @ 9400rpm out of it. Wonder what was done to the engine. Also says a custom EFI system was used....but failed on debut. Would be interesting to know details.


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

62Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Jun 11, 2015 3:36 pm

Motorbike Mike

Motorbike Mike
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Hi Floyd,
Thanks for that. I'll read it tonight,better still,I'll buy the book!

    

63Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Mon Jul 06, 2015 6:22 pm

Motorbike Mike

Motorbike Mike
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Just back from Spa.
The Bikers Classic should on everyone list of things to do. The classic 4 hour Endurance race is amazing,they're so fast at night!!

JJ Cobas K100R Flying Brick - Page 2 Img_1910
JJ Cobas K100R Flying Brick - Page 2 Cimg2618
JJ Cobas K100R Flying Brick - Page 2 Cimg2619
JJ Cobas K100R Flying Brick - Page 2 Img_1911

So we made it to Spa and had a great weekend on the track.
Despite the fact that there are fueling issues, I was pleased with the performance of the Brick. It didn't miss a beat all weekend and I lost count of people asking questions about the bike,lots of Photo's too! It handled well and when the fueling is sorted,it will make a great track bike. The only bikes that completely outclassed us were some of the guys on Superbikes No answer for hot motors with trick chassis' I'm afraid.
I met some nice people and made some useful contacts-what an event!

Next? 1200 TB's,a set of light weight wheels and more engine work.

Watch this space.

    

64Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty 2 days at Cadwell Park-mixed blessings. on Mon Jul 20, 2015 12:57 pm

Motorbike Mike

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The weekend after Spa saw us go to Cadwell Park in Lincolnshire.
The Sunday was great,weather good and the tracktime was fabulous. A big thanks to Classic Bike Trackdays for organising that.
I won a prize for the Brick!
JJ Cobas K100R Flying Brick - Page 2 Cadwel10

It was quite emotional as I only ever build bikes to please myself. The fact that someone had decided to give me a very nice Granite plinth was very,very nice. Thanks to practical Sportsbike magazine too,the T shirt fits a treat.
JJ Cobas K100R Flying Brick - Page 2 Cadwel11


On the Monday it was the BMW owners club Ride Friendly day which again was very emotional......but for the wrong reasons!!

JJ Cobas K100R Flying Brick - Page 2 Img_1913
JJ Cobas K100R Flying Brick - Page 2 Img_1914

Whilst approaching a slower rider around the outside,he made a sudden lunge for the edge of the track. FK why. I was left with no where to go but the grass. I thought I could save it but a large bump came up and catapulted me out of the seat into the stratosphere. 
The bike isn't too bad,nothing major,just minor damage but it's everywhere.

JJ Cobas K100R Flying Brick - Page 2 Img_1915

JJ Cobas K100R Flying Brick - Page 2 Img_1916

JJ Cobas K100R Flying Brick - Page 2 Img_1917

JJ Cobas K100R Flying Brick - Page 2 Img_1919


I'll kick it straight for now and rebuild it over the winter.
Fortunately,I bounced better than expected but did get a (several if I'm honest!) roasting from the Mrs-as if I needed anymore trouble right now!

The high's and low's of biking eh lads?

    

65Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 21, 2015 4:42 am

Comberjohn

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See the camera on the fairing, Mike. Any footage for us to see?


__________________________________________________
Life is not a rehearsal.
2010 VFR 1200F DCT 
2010 R1200GS(gone)
1986 K100 Silver(gone)
2012 K1600GT(gone)
1984 K100RT Madison Silver(gone)
1989 K100LT Stratus Grey(gone)
1984 K100 Red(gone)
http://www.johnsdrivingschool.co
    

66Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 21, 2015 1:02 pm

Motorbike Mike

Motorbike Mike
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@Comberjohn wrote:See the camera on the fairing, Mike. Any footage for us to see?
Hi John,
I didn't have the camera on the bike when I crashed but have some footage from Spa and Cadwell.
I suppose I'll have to upload to Youtube but having not done it before,it may take some time!

    

67Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 21, 2015 3:50 pm

Comberjohn

Comberjohn
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Find a ten year old to show you how to do it. Very Happy


__________________________________________________
Life is not a rehearsal.
2010 VFR 1200F DCT 
2010 R1200GS(gone)
1986 K100 Silver(gone)
2012 K1600GT(gone)
1984 K100RT Madison Silver(gone)
1989 K100LT Stratus Grey(gone)
1984 K100 Red(gone)
http://www.johnsdrivingschool.co
    

68Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Wed Jul 22, 2015 11:31 am

Motorbike Mike

Motorbike Mike
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@Comberjohn wrote:Find a ten year old to show you how to do it. Very Happy
I eventually found a 10 year old who was prepared to help me out!

    

69Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 28, 2015 2:17 pm

Motorbike Mike

Motorbike Mike
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I couldn't resist starting another tank.
I wanted one narrower at the back to give more room to climb around the bike.
As you can see,it's quite a bit narrower than a stock tank.

JJ Cobas K100R Flying Brick - Page 2 Img_1920

JJ Cobas K100R Flying Brick - Page 2 Img_1921

    

70Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 28, 2015 4:48 pm

k-rider

k-rider
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So, you decided to use the tig welder instead of the mallet This time😀


K-rider


71Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Jul 28, 2015 6:30 pm

Motorbike Mike

Motorbike Mike
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Both.
More mallet to come if I decide the front sides need some tough love.  Very Happy

    

72Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Nov 19, 2015 5:27 pm

Motorbike Mike

Motorbike Mike
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Hi Guys,
I've just come across some images of the bike in action.
The pics with the yellow helmet were taken at Spa,black helmet at Cadwell Park.
I hope you like them!

JJ Cobas K100R Flying Brick - Page 2 _dsc2910
JJ Cobas K100R Flying Brick - Page 2 _dsc7410
JJ Cobas K100R Flying Brick - Page 2 _vdc2410



JJ Cobas K100R Flying Brick - Page 2 _bo_9211
JJ Cobas K100R Flying Brick - Page 2 Xsp_0010
JJ Cobas K100R Flying Brick - Page 2 Xsp_0110
JJ Cobas K100R Flying Brick - Page 2 Xsp_0210

    

73Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Nov 19, 2015 5:53 pm

Dai

Dai
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Nice!


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

74Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Nov 19, 2015 6:18 pm

Waz

Waz
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Kool, I just watched the video. Very Kool, almost fell out of my chair leaning over with you around the corners.


__________________________________________________
1987 K100 RS
1997 R1100R
1996 R1100GS
    

75Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sat Nov 21, 2015 4:14 pm

88

88
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@Waz wrote:Kool, I just watched the video. Very Kool, almost fell out of my chair leaning over with you around the corners.
+1 Waz...... Never got the knee down at the kitchen table before 
roundel roundel roundel


__________________________________________________
JJ Cobas K100R Flying Brick - Page 2 Ir-log1188....May contain nuts!JJ Cobas K100R Flying Brick - Page 2 Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

76Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Mon Nov 23, 2015 9:54 am

Motorbike Mike

Motorbike Mike
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Aside from the sheer weight having it's own effect, the bricks handle quite well when you "tighten" the chassis up.
What are you all waiting for?

    

77Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Mon Nov 23, 2015 5:48 pm

Dai

Dai
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Well... I've got scrape marks under my boots but never had the pegs down. Does that count?


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

78Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Nov 24, 2015 11:31 am

Motorbike Mike

Motorbike Mike
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Knee's and belly pan but never the footrests so that's two of us.

    

79Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Nov 24, 2015 12:17 pm

k-rider

k-rider
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Belly pan, really? I never tried that. But footrest on both sides. Are scrapping the tarmac from time to time

K-rider


80Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Nov 24, 2015 12:42 pm

Motorbike Mike

Motorbike Mike
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My footrests are along the same line as the swing arm pivot and the bike is raised 30mm at the rear.
I have had the right footrest touch down though,when I crashed it!!  Very Happy Very Happy

    

Motorbike Mike

Motorbike Mike
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I thought it was about time I started to pull the Flying Brick apart because it needs some love.
I've ordered new bodywork to replace the damaged fairing, I've started a new tank which will be much narrower at the rear and there's a new engine in bits as I type getting vapour blasted because it's scruffy.
The new engine started life as a K1100LT but we have RS cams, the internals will be lightened as much as possible, 1200 throttle bodies and the head will be skimmed for more compression as piston options are not available. There's lots of piston to valve clearance with the RS cams so no issues there.

There's nothing wrong with the old 8 valve unit, it's a huge spec but I want more power and can't find a 1200 engine for sensible money so 1100 16v it is.

JJ Cobas K100R Flying Brick - Page 2 Cimg3111

    

82Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Dec 06, 2015 8:43 pm

Inge K.

Inge K.
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@Motorbike Mike wrote:The new engine started life as a K1100LT but we have RS cams,

The K1100LT and the K1100RS have identical camshafts.
Maybe you mixing with the K12, where they differs between the RS/LT.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

83Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Dec 06, 2015 9:03 pm

RicK G

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Same subject but off track a bit. I was groping about on RealOEM a few weeks ago and it seems that the Australian market had different cams for the K1100 LT and RS than Europe. I didn't check out US bikes.
Inge you are probably better at the interpretation of the parts catalogue what are your thoughts on this.
I think the cams probably are different as I got a set of K1200RS ams from US some time ago and put them into my K1100 and the difference was remarkable. So remarkable I took them out as I didn't like a touring bike standing up at 5000rpm in 2nd gear.


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats."  from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

84Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Dec 06, 2015 9:09 pm

Inge K.

Inge K.
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No surprise as the K12RS (and LT) have different cams than the K11's


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

85Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Dec 06, 2015 9:14 pm

RicK G

RicK G
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There may have been a few things changed within the ECU as I really dont think that the power should come on that hard and I certainly didn't expect it.
First time my K1100 lifted the front was in 3rd when I was overtaking  and was fairly gentle and I was loaded to the rear quite a bit but then a few times I guned it in 2nd and it stood vertical so not wanting and exciting life at my age I removed them.


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats."  from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

86Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Mon Dec 07, 2015 12:16 pm

Motorbike Mike

Motorbike Mike
Life time member
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@Inge K. wrote:
@Motorbike Mike wrote:The new engine started life as a K1100LT but we have RS cams,

The K1100LT and the K1100RS have identical camshafts.
Maybe you mixing with the K12, where they differs between the RS/LT.
Inge,
Well spotted and you're absolutely correct. I have K1200RS cams that are a 284 cam-sorry, I omitted the 1200 from my description.

If the 284 cam hits that hard, that will suit my bike just fine. 
If any of you guys have a set of 12RS cams going spare, let me know. I might slip a pair in my K11LT too.

    

87Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Mar 13, 2016 4:22 pm

Oldgoat

Oldgoat
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What a beautiful custom project Mike!  Luv the track pics!!  Keep up the outstanding work...
Best,
OG

    

88Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Sun Mar 13, 2016 5:51 pm

Motorbike Mike

Motorbike Mike
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Life time member
Hi OG,
I'm still waiting for my K11 engine with K12 cams, skimmed head to raise compression, lightened internals with lightened and balanced crank.

JJ Cobas K100R Flying Brick - Page 2 Cimg3211

This is what I have at the moment
so there's plenty to get stuck in to.

Mike.

    

89Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Here we go again. on Mon Mar 28, 2016 7:21 pm

Motorbike Mike

Motorbike Mike
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I have to admit I became distracted by another thread I started so back to it.
I have my K1100 16v engine back with K1200 cams, skimmed head, lightened and balanced crank, slightly reshaped ports, K1200 headers, K1200 oil/water pump to facilitate an oil cooler for better cooling.

I'd only had the motor back a week when I had to be stripped again to fit a K1200RS output shaft to run the new pump assembly.
Here's an easy way to fit the gearbox and drive onto an upturned engine. JJ Cobas K100R Flying Brick - Page 2 Cimg3217

Once fitted, I laid everything down and dropped the frame on top and bolted it all up.
JJ Cobas K100R Flying Brick - Page 2 Cimg3218

Last year I used an 8 valve motor and injection but the 16v injection system is slightly different as the injectors fit into the throttle body inlet stubs, I presume most of you knew that. The 16 valve fuel rail has the pressurised flow  pipe in a different position and has the flow pipe pointing outwards and down. I had to move the pipe to the opposite side so the fuel pipe sat inside the fairing and weld up the disused inlet-nothing's simple. 
JJ Cobas K100R Flying Brick - Page 2 Cimg3220


JJ Cobas K100R Flying Brick - Page 2 Cimg3222
JJ Cobas K100R Flying Brick - Page 2 Cimg3223

Radiator fitted with a fresh coat of wrinkle finish black hi-temp paint. The curved silicone pipe on top of the motor doesn't belong there before I'm asked what it does. Very Happy
JJ Cobas K100R Flying Brick - Page 2 Cimg3224

    

90Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Wed Mar 30, 2016 6:22 pm

Motorbike Mike

Motorbike Mike
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The part that caused all the pain has finally been fitted

JJ Cobas K100R Flying Brick - Page 2 Cimg3226

JJ Cobas K100R Flying Brick - Page 2 Cimg3227

    

91Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 5:07 am

K75cster

K75cster
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Looks like a bought one, when do you put it to the test? Be interesting to see how the temp goes in the heat of battle. Are you fitting the oil cooler as well or doing a compare before and after style?


__________________________________________________
Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

92Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 6:38 am

Crazy Frog

Crazy Frog
admin
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@Motorbike Mike wrote:The part that caused all the pain has finally been fitted
JJ Cobas K100R Flying Brick - Page 2 Cimg3226

Yes, it looks very professional.

As a reminder, just a tip to avoid your bike/engine tipping on the lift...
JJ Cobas K100R Flying Brick - Page 2 015
Read post #20 here


__________________________________________________
JJ Cobas K100R Flying Brick - Page 2 Frog15JJ Cobas K100R Flying Brick - Page 2 Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

93Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 6:48 am

Motorbike Mike

Motorbike Mike
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lol!  That is a great idea bolting the support bars to the side of the motor but unfortunately I have 2 broken bolts in the left side. 
I've got too many jobs to get done to invest any time removing them-one day.

    

94Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 8:45 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
JJ Cobas K100R Flying Brick - Page 2 Starte10
This is how a redneck gits 'er dun:

When yer all done and the engine is back in the frame you can chop up yer lift, throw it in the stove and use it to cook breakfast.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

95Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 11:18 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
No, the wood will have to go on the bed frame. I stole 2 supports to hold the bike up-from the Wife's side obviously.

    

96Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Thu Mar 31, 2016 11:23 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
@K75cster wrote:Looks like a bought one, when do you put it to the test? Be interesting to see how the temp goes in the heat of battle. Are you fitting the oil cooler as well or doing a compare before and after style?
I tried it without an oil cooler last year and it struggled, on the slowdown lap it would boil over.

    

97Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Apr 05, 2016 12:46 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
This past 4 days has been spent making an air box to get fresh air to the engine.
I decided as a start I'd use stock K1100 rubber connectors and velocity stacks. The stock rubbers etc wouldn't fit inside the fairing but it was #1 stack being near the to front down tube that threw the other 3 out.

JJ Cobas K100R Flying Brick - Page 2 Cimg3230
 I made an alloy air box (MK1 version) to start with. It's not huge but I can increase volume on the bottom or start again if need be. 

JJ Cobas K100R Flying Brick - Page 2 Cimg3233

JJ Cobas K100R Flying Brick - Page 2 Cimg3235

JJ Cobas K100R Flying Brick - Page 2 Cimg3234

I doubt that Ron Dennis at McLaren will be worried about my intake development program!!

I've also finally got the oil cooler fitted up. It's rubber mounted as the vibes will tear it apart if not.
It never fails to amaze me how much time it takes to make one off parts. If you want something right it's hours of fit, file, fit, file, drill-you know don't you?

JJ Cobas K100R Flying Brick - Page 2 Cimg3238

JJ Cobas K100R Flying Brick - Page 2 Cimg3236

JJ Cobas K100R Flying Brick - Page 2 Cimg3237

    

98Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Apr 05, 2016 1:23 pm

Chocolate

Chocolate
Life time member
Life time member
Hello Mike!

I'm curious to hear how the bike will run!!!
Well done, looks like a good track bike.

Cheers


__________________________________________________
Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

99Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Apr 05, 2016 2:05 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Too right, Mike, and my project's just a pile of oem parts bolted together. Hardly a collection of one-offs like this.

I'm still not sure where to place, and of what version, my oil cooler will be. I've a triangular Ducati type, an automotive transmission version, and a larger motorbike type. It's all down to how to mount it as much as where.

I'm enjoying your build notes and look forward to more wheelie pics from your favourite tracks.


__________________________________________________

1987 K100RS, '89 K100 w/K1100RS engine, '93 Framed K11/K12 engine 'Big Block', '96 K1100RS, '09 K1300GT, '13 R1200RT-P, '95 R100 Mystic & '77 R75/7.

    

100Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty wow! love it! on Tue Apr 05, 2016 2:09 pm

Neil_art

Neil_art
active member
active member
wow! love it! looks awesome keep the pictures coming Smile

    

101Back to top Go down   JJ Cobas K100R Flying Brick - Page 2 Empty Re: JJ Cobas K100R Flying Brick on Tue Apr 05, 2016 2:27 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Although I've only got last years 8v 1000 to compare with, I'm at least hoping for a more responsive bike.

    

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