BMW K bikes (Bricks)


You are not connected. Please login or register

Go to page : 1, 2, 3, 4  Next

View previous topic View next topic Go down  Message [Page 1 of 4]


1Back to top Go down   JJ Cobas K100R Flying Brick Empty JJ Cobas K100R Flying Brick Tue Mar 10, 2015 5:55 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Here's Senor Cobas stood with his Flying Brick and this is the look I'm aiming for.
In the spirit of JJ's bike,it's an 8 valver.
The bike has to be quick and the engine has undergone a succession of modifications that include;
High compression pistons.
Ported cylinder head.
Modified combustion chambers.
Race cams.
Balanced con rods.
Lightened and balanced crank.
Straight cut primary gears
12;1 (ish) compression ratio.
16 valve Motronic EFI.
Larger throttle bodies.
38mm header pipes.
Modified oil /water pump.......and the list goes on!
 JJ Cobas K100R Flying Brick 204jdl11
Here is the frame and wheels just back from the Powder Coaters
JJ Cobas K100R Flying Brick Cimg2214
JJ Cobas K100R Flying Brick Cimg2317
JJ Cobas K100R Flying Brick Cimg2318
JJ Cobas K100R Flying Brick Cimg2319
JJ Cobas K100R Flying Brick Cimg2320
JJ Cobas K100R Flying Brick Cimg2321
JJ Cobas K100R Flying Brick Cimg2322

That's about up to date now.
There's also the handling department but that's for another time!

    

2Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Tue Mar 10, 2015 8:15 pm

mike d

avatar
Life time member
Life time member
Your workshop is better than my kitchen  Laughing

Mike

    

3Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Tue Mar 10, 2015 9:20 pm

blaKey

avatar
Life time member
Life time member
Nice pictures!

I can see myself doing something like that in my little tin shed! Any millionaires out there who could flick me a lazy 20 grand to see my dream fulfilled?

"Modified oil /water pump"...any details about this mod that you can pass on to us?


__________________________________________________
Neil
K100RS 1986 RED!

Dress for the ride and the potential slide.
    

4Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Tue Mar 10, 2015 9:55 pm

KafeRacer

KafeRacer
Silver member
Silver member
Looking great so far, the white wheels look real sharp.

Cheers, Dave.


__________________________________________________
Dave Evans
'Kafe Racer'
kaferacer.wordpress.com

1990 K75RT
1985 K100 Kafe Racer
http://kaferacer.wordpress.com
    

5Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 11, 2015 11:32 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
blaKey wrote:Nice pictures!

I can see myself doing something like that in my little tin shed! Any millionaires out there who could flick me a lazy 20 grand to see my dream fulfilled?

"Modified oil /water pump"...any details about this mod that you can pass on to us?

It's got modified gearing to flow more fluids.
It's not back with me yet so I've not examined the mods. As the bike is going to spend a lot of time getting ridden hard,I'm advised this is the way to go.
More details when I have them.

    

6Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 11, 2015 11:41 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
mike d wrote:Your workshop is better than my kitchen  Laughing

Mike
It's untidy at the moment as I'm in "construction" mode.
I've also just sold a few bikes to thin the herd out a little-I had too many and wanted some floor space back.
On the strength of building the Brick,I've just sold my lovely 927cc shortstroke Airhead track bike.
A decision I hope I won't regret but I do have a little "sellers remorse"  Crying or Very sad

JJ Cobas K100R Flying Brick Spa_ju10

The Bikers Classic at Spa last year.

    

7Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 11, 2015 2:18 pm

88

88
Life time member
Life time member
Looks like you are right on track for the Reconstruction of the opening pic  JJ Cobas K100R Flying Brick 112350


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

K1 - 1989 - AKA Titan (unique K1/K1100RS hybrid by Andreas Esterhammer)
K1100RS - 1995. AKA Rudolf Von Schmurf (in a million bits)
K100RS - 1991 AKA Ronnie. Cafe racer project bike
K75RTP - 1994
K75C - 1991 AKA Jim Beam. In boxes. 
K1100LT 1992 - AKA Big Red (gone)
K100LT - 1988 - AKA the Bullion brick. Should never have sold it.
    

8Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sun Mar 15, 2015 6:49 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
A little more progress.
I'm considering welding some alloy sheet to the fuel tank at the front to finish the lines as the stock tank is an awkward shape when it's exposed.

JJ Cobas K100R Flying Brick Cimg2330
JJ Cobas K100R Flying Brick Cimg2331

That's really ugly down there and I can't leave it after all the effort put into the rest of the bike.

Here is the top triple clamp and instruments.

JJ Cobas K100R Flying Brick Cimg2332

    

9Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Mar 19, 2015 4:04 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Narrow 2 row rad fitted with modified waterpump.

JJ Cobas K100R Flying Brick Cimg2313

It had to be narrow to fit inside the fairing.

JJ Cobas K100R Flying Brick Cimg2314


JJ Cobas K100R Flying Brick Cimg2410

The huge airfilter is only temporary as some trick throttle bodies are under construction. When they arrive,another filter will no doubt have to be sorted......and before anyone mentions that it's behind the warm air coming from the radiator,it will have ducting for a cool air supply!

JJ Cobas K100R Flying Brick Cimg2315

    

10Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Mar 19, 2015 9:23 pm

rosskko

rosskko
VIP
VIP
This looks like a pretty well thought out design.

Two thing I noticed immediately.

You trimmed off the tabs for the side covers from the bottom of the tank. It is a pet hate of mine that people go to all the trouble of removing any trace of the fairing yet leave that big flap with a hole in it.
You have used the fairing mounts on the frame to hold the radiator. Brilliant. Another pet hate.
Looking forward to the finished product.


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

11Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Mar 20, 2015 12:01 am

KafeRacer

KafeRacer
Silver member
Silver member
Is that a non-stock tank?  I am noticing the large indent on the side and no circle for the emblem.

Thanks.


__________________________________________________
Dave Evans
'Kafe Racer'
kaferacer.wordpress.com

1990 K75RT
1985 K100 Kafe Racer
http://kaferacer.wordpress.com
    

12Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Mar 20, 2015 2:06 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
rosskko wrote:This looks like a pretty well thought out design.

Two thing I noticed immediately.

You trimmed  off the tabs for the side covers from the bottom of the tank. It is a pet hate of mine that people go to all the trouble of removing any trace of the fairing yet leave that big flap with a hole in it.
You have used the fairing mounts on the frame to hold the radiator. Brilliant. Another pet hate.
Looking forward to the finished product.
I agree about the tabs on the tank but perhaps people are afraid to cut them off in case they make the tank leak? If you're careful it's an easy job.
As for using the fairing mounts,I think it's a bit of luck that the rad mounts were in just the right place this time.

It's off for a set of 38mm headers next week and when it comes back I'll be very close to pressing the button to see if it runs. Fingers crossed!

    

13Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Mar 20, 2015 2:24 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
KafeRacer wrote:Is that a non-stock tank?  I am noticing the large indent on the side and no circle for the emblem.

Thanks.
It's a genuine BMW alloy tank lovingly re-crafted in my shed.
I have another tank that I may modify further because I find it a little wide at the back if you're into climbing all over the bike like I tend to do
Here are some better pictures for you.
Will you have a go?
JJ Cobas K100R Flying Brick Cimg2411
JJ Cobas K100R Flying Brick Cimg2412
JJ Cobas K100R Flying Brick Cimg2413

    

14Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Mar 20, 2015 3:13 pm

KafeRacer

KafeRacer
Silver member
Silver member
Well that looks like excellent job on the tank.  Now I notice the gas cap, something you crafted/modified as well?

Cheers.  Dave


__________________________________________________
Dave Evans
'Kafe Racer'
kaferacer.wordpress.com

1990 K75RT
1985 K100 Kafe Racer
http://kaferacer.wordpress.com
    

15Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Mar 20, 2015 3:24 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
KafeRacer wrote:Well that looks like excellent job on the tank.  Now I notice the gas cap, something you crafted/modified as well?

Cheers.  Dave
Hi Dave,
I've got to weld 3 small tabs onto the inside lip,drill and tap them and fit the new billet cap with a gasket.
The stock fitment cap is waaay to big.

Mike.

    

16Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 3:43 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
The radiator is now all plumbed in.
As most of you on here will know, the stock BMW rad has an integral thermostat fitted.
I thought it unwise to run without a stat so found an all alloy in line car housing, it's huge but should do the job nicely.

JJ Cobas K100R Flying Brick Cimg2414

    

17Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 4:02 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
Interesting routing for the coolant hoses.....The bike looks a great job!


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

18Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 4:07 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
92KK 84WW Olaf wrote:Interesting routing for the coolant hoses.....The bike looks a great job!
Interesting routing and necessary (though not ideal!) as I couldn't think of another way to get the stat in line.
Compromises eh?

    

19Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 4:22 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
I love the attention to detail, the water/oil pump cover too.

At the weekend we had a meet up and funny we had a discussion about thermostats at one point.

But the thought about thermostats was they really only kicked in when the engine was fired up first, or when you were driving in extreme cold conditions and needed to avoid overcooling the engine. I wonder in very warm conditions does the thermostat simply stay fully open when the engine is warmed up?


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

20Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 5:21 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
92KK 84WW Olaf wrote:I love the attention to detail, the water/oil pump cover too.

At the weekend we had a meet up and funny we had a discussion about thermostats at one point.

But the thought about thermostats was they really only kicked in when the engine was fired up first, or when you were driving in extreme cold conditions and needed to avoid overcooling the engine. I wonder in very warm conditions does the thermostat simply stay fully open when the engine is warmed up?
Once the coolant hits a predetermined temperature,say 85 degrees C, the stat will begin to open  and if the engine cools it will close slightly. It's self regulating to hopefully keep the engine at an even temperature.

    

21Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 5:34 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
I confess I wrote that without thinking you were in the same climate......Sheffield. I was thinking much hotter locations, not a good idea to do without it in the long term. Anyway, the location you have that in makes it a much easier change if it ever needs to be changed.


__________________________________________________
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 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

22Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 5:40 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I chose the same temperate range as the stock BMW stat to keep things even so hopefully it won't need to be changed.

    

23Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 6:41 pm

indian036

indian036
Life time member
Life time member
Thermostats can be interesting. I changed the son in law's on the bmw 540i last week. Unlike his previous bmws it had been generally running cooler, and fluctuating. I found that the thermostat was an 85 degree one. When I put in the 95 one, back to normal - quick warm up and steady in the middle of the temp gauge thereafter. 

In Oz, it used to be common for people who 'knew' about cars to remove the thermostat from their holdens, Falcons and valiants for more 'cooling efficiency'! Temperatures all over the place, slow warm up and uneven water circulation so the back cylinders of the straight sixes were cooled less. Clever people. Wink

Bill


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy ROB the Red Old Bike   (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  Tom the Triple (now on Historic rego too.)
    

24Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon Mar 23, 2015 9:07 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Not to hog space concerning this nice build, but continuing the Tstat theme...

Whilst out riding in a light drizzle yesterday on the K1100RS w/K1200LT motor I would notice the temp gauge dropping to just above the blue lines and only when in town or stopped and idling would the gauge register near to a 'normal' operating range of the other Ks I own or have ridden. Since this bike is relatively unknown to me still, and wiggling/cleaning the sensor wire at the pump did nothing, I'm left to imagine until I rip into it, that the PO removed the Tstat, or it's stuck open.

Unless you ride only in Summertime's highest temps at the bottom of Death Valley, Las Vegas, the Pilbara, King's Canyon, perhaps the top end of Chad, and even then, I'm in agreement that running without something stabilising the engine's temperature is folly.


__________________________________________________
1977 R75/7-100, '93 K11/K12 Big Block, '95 R100 Mystic, '96 K1100RS, '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & 1st '98 K1200RS.
The Mystic, Big Block, 2nd K1200RS, K12R & K13 are running & ridable.
    

25Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 25, 2015 3:11 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I hope that when all the bodywork is painted the bike looks OK.
It would seem the chances of getting hold of a Cobas K100 fairing are slim to zero so I'm stuck with this Ducati F1 item.

JJ Cobas K100R Flying Brick Cimg2415


I'll be running the bike with twin lights up front like the Brick endurance racer which i hope will further detract from the fairing not being the shape I want.

JJ Cobas K100R Flying Brick 1984_m10


This is the fairing I wanted to use as it's really close to the Cobas bike but it is waaay to small-Shame!!
JJ Cobas K100R Flying Brick Xr41fa11
JJ Cobas K100R Flying Brick 244810

    

26Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 25, 2015 4:55 pm

Comberjohn

Comberjohn
Life time member
Life time member
Looking good, Mike.
Are you going to try to recreate the same paint job?


__________________________________________________
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
    

27Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed Mar 25, 2015 5:42 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Comberjohn wrote:Looking good, Mike.
Are you going to try to recreate the same paint job?
Absolutely!! 
It has to be done in the Cobas colours but that doesn't mean I'm looking forward to executing the paint job. It will be a long process but hopefully rewarding.

    

28Back to top Go down   JJ Cobas K100R Flying Brick Empty The exhaust has arrived. Tue Mar 31, 2015 2:41 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
My Exhaust has arrived so it won't be long before I hit the button!
38mm headers with an Akrapovic silencer from an R1200R nicked off eBay for £50-I kid you not!!
Back pressure may be an issue and if so, a "kidder" valve will be installed.

JJ Cobas K100R Flying Brick Cimg2416

I need to fabricate a hanger.

JJ Cobas K100R Flying Brick Cimg2417
JJ Cobas K100R Flying Brick Cimg2418
JJ Cobas K100R Flying Brick Cimg2419

    

29Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 6:10 pm

Comberjohn

Comberjohn
Life time member
Life time member
Scared to ask, Mike, but that's a lovely exhaust system.
Is it a one of and if it can be bought, how much?


__________________________________________________
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
    

30Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 6:36 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
It's a one-off. £400 + the R1200R Titanium silencer.

    

31Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 6:48 pm

Comberjohn

Comberjohn
Life time member
Life time member
Lovely, but ouch. Back to the drawing board (and eBay).


__________________________________________________
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
    

32Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 7:04 pm

KafeRacer

KafeRacer
Silver member
Silver member
For custom one off headers/collector that looks that nice 400 pounds does not seem that crazy.


__________________________________________________
Dave Evans
'Kafe Racer'
kaferacer.wordpress.com

1990 K75RT
1985 K100 Kafe Racer
http://kaferacer.wordpress.com
    

33Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 7:17 pm

Comberjohn

Comberjohn
Life time member
Life time member
I agree. It's certainly worth the money for a project like this but it's more than I paid for my last two K100's.:pale:


__________________________________________________
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
    

34Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Thu Apr 09, 2015 7:25 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Comberjohn wrote:Lovely, but ouch. Back to the drawing board (and eBay).
Hi John,
If it's a 1000cc 16 valve model you have,K1200RS/GT headers will fit into the ports but will need huge modifications on #4 pipe to get it around the lump on the bell housing/gearbox. My 8 valve engine was away having work done and I was using a 16 valve motor as a mock up without realising the big differences in the two engines.
JJ Cobas K100R Flying Brick Cimg2316
JJ Cobas K100R Flying Brick Cimg2317
JJ Cobas K100R Flying Brick Cimg2110

Sadly the 1200 headers will not fit the 8 valve head which is why I cant use them,hence the new pipe set.
I'll fit these to my 16 valve road bike next winter.

    

35Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Fri Apr 10, 2015 1:53 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I was forced to make a purchase!!
It arrived today from Italy in just 4 days.

JJ Cobas K100R Flying Brick Cimg2420
JJ Cobas K100R Flying Brick Cimg2422


 To start the bike I originally bought an Odyssey PC680 for ultra reliability. The trouble is,it weighs 7kg!
I had a few other batteries in stock so I thought I'd see (just for a laugh) if the small Lithium batteries would start the bike. The coin against the centre battery is a £1 for size comparison. All 3 spun it over without any fuss on multiple start ups.
Guess which one I'll use!!

JJ Cobas K100R Flying Brick Cimg2423

    

36Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat Apr 18, 2015 6:31 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I'm fitting K1100 throttle bodies and I've read elsewhere about the fitment of the cable and fuel pressure regulator. I've used the K100 8v cable  post and the 8v FPR bracket. With a small adjustment to the cable post.the cable worked fine and the 1100 FPR fitted the 8v bracket and also fits perfectly.


JJ Cobas K100R Flying Brick Cimg2426


JJ Cobas K100R Flying Brick Cimg2427


JJ Cobas K100R Flying Brick Cimg2428

    

37Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat Apr 18, 2015 11:04 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
That is the result. No need to change the original cable bracket at the TBs. It's only when you replace the twisty grip to a 20mm MC/16V setup that you need to mod the K100 cable end bracket. This is done by grinding a few mm's from the cylindrical end and snipping a few more mm's from the cable's plastic end, then perhaps bending the barcket a smidgen. Results may vary.


__________________________________________________
1977 R75/7-100, '93 K11/K12 Big Block, '95 R100 Mystic, '96 K1100RS, '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & 1st '98 K1200RS.
The Mystic, Big Block, 2nd K1200RS, K12R & K13 are running & ridable.
    

38Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sun Apr 19, 2015 12:11 am

robmack

robmack
Life time member
Life time member
TWB, Motorbike Mike might still need to modify the cable bracket to fit the cable coming from the Brembo radial master he fitted.  I'm not sure how the bowden cable looks coming off that twist grip.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

39Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sun Apr 19, 2015 2:14 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Of course, it's specifically the other end of the hose that I'm speaking (in)to.  Wink


__________________________________________________
1977 R75/7-100, '93 K11/K12 Big Block, '95 R100 Mystic, '96 K1100RS, '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & 1st '98 K1200RS.
The Mystic, Big Block, 2nd K1200RS, K12R & K13 are running & ridable.
    

40Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sun Apr 19, 2015 3:50 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
robmack wrote:TWB, Motorbike Mike might still need to modify the cable bracket to fit the cable coming from the Brembo radial master he fitted.  I'm not sure how the bowden cable looks coming off that twist grip.
The twist grip end is all good.
I did expect to have to modify the cable at the TB end and must admit that it's on it's tightest limit but free play is still present so it's signed off the list. I make all my own control cables so an alteration is never an issue.
I've tried to show the twist grip and cable below.

JJ Cobas K100R Flying Brick Cimg2429

JJ Cobas K100R Flying Brick Cimg2430

    

41Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat May 16, 2015 11:09 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I find the tanks on the K's big and bulbous so modifications had to be made.
When the tank was sat on the bike (see first image),the shape at the front looked unfinished and a poor effort,like they all do in my opinion. 

Why does every modified K100 have the petrol tank ignored? It's a focal point of the bike,I just don't get it.



JJ Cobas K100R Flying Brick Cimg2513
JJ Cobas K100R Flying Brick Cimg2510
JJ Cobas K100R Flying Brick Cimg2511
JJ Cobas K100R Flying Brick Cimg2512

    

42Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat May 16, 2015 11:38 am

k-rider

k-rider
Life time member
Life time member
Nicely done, waiting to see it mounted 

K-rider


43Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat May 16, 2015 11:41 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
k-rider wrote:Nicely done, waiting to see it mounted 

K-rider
Just for you Sir,the filler-primer is still wet!

JJ Cobas K100R Flying Brick Cimg2514

    

44Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat May 16, 2015 11:49 am

k-rider

k-rider
Life time member
Life time member
Looks great,it sure look less bulky,did you use a software mallet and a sand bag to make the 'dents'on Both sides.

K-rider


45Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sat May 16, 2015 11:56 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
k-rider wrote:Looks great,it sure look less bulky,did you use a software mallet and a sand bag to make the 'dents'on Both sides.

K-rider
I used a hide mallet because it's all I could find.

    

46Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Sun May 17, 2015 12:33 pm

k-rider

k-rider
Life time member
Life time member
Just wondering
Is there still Room for removing/installing the fuel pump?

:-c:

K-rider


47Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon May 18, 2015 3:35 am

Motorbike Mike

Motorbike Mike
Life time member
Life time member
I must admit that when I started modifying the tank,I just got stuck in with the mallet with no consideration for the internals of tank. 
If you look inside where the pump sits,it fixes into it's own bracket. The rear of the scallop goes right in front of the pump bracket. I have to admit that it's luck rather than judgement that the pump location is unaffected but every now and then,something works out OK.


JJ Cobas K100R Flying Brick Cimg2515


JJ Cobas K100R Flying Brick Cimg2516



Last edited by Motorbike Mike on Mon May 18, 2015 11:01 am; edited 2 times in total (Reason for editing : Add images)

    

48Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon May 18, 2015 2:22 pm

Comberjohn

Comberjohn
Life time member
Life time member
Hi Mike. Do you have any panel beating skills or was it easier than you imagined?
I keep thinking of the Father Ted episode where he tried to beat out a dent on the raffle car and didn't know when to stop. 
Might be worth keeping an eye on eBay for a spare tank before I would start!


__________________________________________________
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
    

49Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Mon May 18, 2015 2:38 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Hi John,
I had a couple of tanks and just thought I'd try some "adjustments" I think it's a common sense thing,just go steady and even-there's always body filler if you go too far!

    

50Back to top Go down   JJ Cobas K100R Flying Brick Empty Re: JJ Cobas K100R Flying Brick Wed May 20, 2015 2:12 pm

Motorbike Mike

Motorbike Mike
Life time member
Life time member
Lots of orange about!! 

JJ Cobas K100R Flying Brick Cimg2517

and a new dash from Translogic.

JJ Cobas K100R Flying Brick Cimg2518

    

Sponsored content


    

View previous topic View next topic Back to top  Message [Page 1 of 4]

Go to page : 1, 2, 3, 4  Next

Permissions in this forum:
You cannot reply to topics in this forum