K11 Owners Group

Flying Duck · Posted: Thu Feb 04, 2010 11:04 pm Post subject: Building a K75 from scratch

In case anyone here is interested, I started building my K75F (Frankenbike) this week. I'm documenting it over on ADV at the following link. You can probably learn a lot about K bikes there if you're a nOOb to Ks.

Since it's a two valve K it's got some differences with K1100s but the basic design of the bikes is close.

Linky: http://www.advrider.com/forums/showthread.php?t=546357
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

lexxol · Posted: Tue Feb 09, 2010 7:32 pm Post subject:

K75F bike will be very cool. Have you moved any further along? Want to see more.
_________________
1995 K1100rs
1987 k75/Pichler fairing

Stoked Steve · Posted: Tue Feb 09, 2010 8:31 pm Post subject:

Duck wrote:

Flying Duck · Posted: Tue Feb 09, 2010 9:13 pm Post subject:

Scott_Anderson · Posted: Tue Feb 09, 2010 10:26 pm Post subject:

Steve, I just orderd an extra set of 4 (11611460940). I figured if they were skinny enough for the lower hose that they would fit the upper ones too.
They are most likely more than mmcarr but I didn't need 10 of them for my project.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Stoked Steve · Posted: Wed Feb 10, 2010 9:43 pm Post subject:

Scott, don't those BMW one's require a special tool to install? It's been a while since I cut them off, but I thought I remebered that you had to have a BMW tool to tighten them up.

I was hoping to find plain old hose clamps for ease of installation and the ability to remove them in the future with out destroying them. All the local auto parts places only had wider ones that wouldn't fit in the groove.

Am I mistaken?
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Scott_Anderson · Posted: Wed Feb 10, 2010 10:05 pm Post subject:

Steve, there are 2 kinds of the large hose clamps.
1 type that are the oetiker type are the 48mm one-time clamps.

The other kind are a screw type reuseable. They are also skinny.

11611460940 is the part # for the reusable ones.

http://www.maxbmwmotorcycles.com/fiche/ShowImage.aspx?image=Diagrams/B0000184.png&rnd=2229811

http://www.maxbmwmotorcycles.com/fiche/DiagramsMain.aspx?model=K1100LT&prod=021992-031997&market=USA

part #4. The description says it's 46mm but it will fit both sides of the throttle body and the injector side of the intake hose.
I used them on mine.
You just have to be careful where you place the screws so they don't interfere with the linkage, but it can be done. It's pretty easy.

_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Flying Duck · Posted: Wed Feb 10, 2010 10:13 pm Post subject:

You need a special tool but not necessarily the BMW version.

http://www.oetiker.com/content.asp?l=4&idNavig=448

There are generic versions out there too.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Flying Duck · Posted: Wed Feb 10, 2010 10:18 pm Post subject:

Flying Duck · Posted: Thu Feb 11, 2010 4:12 pm Post subject:

Recent update on this page:

http://www.advrider.com/forums/showthread.php?t=546357&page=3
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

poetryandmotorbikes · Mad Brick Rider Joined: 17 Sep 2009 Posts: 80

Good for you Duck, looking forward to watching this come together.
_________________
1992 K75S

Motopoeta | Beautiful Vintage Motorcycles Daily

Flying Duck · Posted: Thu Feb 18, 2010 7:48 pm Post subject:

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

poetryandmotorbikes · Mad Brick Rider Joined: 17 Sep 2009 Posts: 80

#$@$@#
_________________
1992 K75S

Motopoeta | Beautiful Vintage Motorcycles Daily

Flying Duck · Posted: Thu Jul 01, 2010 2:51 pm Post subject:

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Flying Duck · Posted: Fri Jan 28, 2011 11:25 pm Post subject:

Well, I've been diddling with this bike in my spare time and recently got to getting the ABS to work. Since the K1100 front end uses a different sensor and modulator I already had those installed.

The real bummer was when I discovered that one of the outlets on K1100 front modulator was larger than the connector for the K75 front metal ABS lines. I found a dude with his own brake shop that's been doing brakes for years. I rode the bike down to his place and he confirmed that he could replace the K75 connector with a K1100 connector I'd looted from a K1100 brake line. The downside was that he had to do it on the bench. This meant I had to remove the metal brake line from the bike.

What a pain in the ass. In order to get the brake line out I had to take the front wheel off and disconnect the frame from the rear of the bike so I could rotate the rear of the frame up and extract the metal line. It sounds easy but is a LOT of work. Once he'd put the new connector on (only $17) I had to reroute the metal line and then put everything back together.

I had a set of Galfer stainless brake lines that I bought for my RS so I used those instead of some old crappy worn brake lines.

I also had to rewire the connector on the K75 harness to make it work with a K1100 brain. It really only involves moving the power supply by one pin but it's kind of a hassle to take the connector apart and reposition the pin and then put it back together. Fortunately, since I'd planned on doing this ahead of time, I did it to the wiring harness before I initially installed it on the bike.

Anyhow, this morning I finally got everything back together, installed the K1100 ABS I brain and it was time for the acid test. Will my hybrid K75/K1100 ABS work? Question

I was gonna be pissed if it didn't because it ended up being a lot of extra work to make this an ABS bike.

So I backed it out of the garage this morning, turned it on and got the expected ABS lights flashing. Dropped into first gear, let out the clutch and VOILA! THE ABS INITIALIZED ON THE FIRST TRY! SUCCESS!!!! Very Happy

_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

Jim · Posted: Fri Jan 28, 2011 11:50 pm Post subject:

Cool!
_________________
Jim
1997 K1100LTSE 94,000 - still has gremlins!
1995 R100RT Classic 16,650 crashed - repaired!
1992 K75RTP 46,000

"We shall not all die, but we shall all be changed."