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MOTOBRICK.COM => Welcome To Motobrick.Com => Topic started by: Flick on August 21, 2011, 11:58:51 AM

Title: New guy with a K75s cafe/rat bike
Post by: Flick on August 21, 2011, 11:58:51 AM
I just bought a '90 K75s that has been converted to a rat/cafe bike from a friend to replace my triumph that was hit by a car. She is a bit rough cosmetically but runs wonderfully. So far I am enjoying this bike.
Title: Re: New guy with a K75s cafe/rat bike
Post by: johnny on August 21, 2011, 12:45:12 PM
greetings flick...

welcome to motobrick dot com... home of the original motomayhem...

show me some 90k75s caferatbike...

j o
Title: Re: New guy with a K75s cafe/rat bike
Post by: frankenduck on August 21, 2011, 01:27:46 PM
(http://hunting-washington.com/smf/index.php?action=dlattach;topic=77412.0;attach=146919;image)


Welcome to motobrick.com. 8)
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on August 21, 2011, 02:36:54 PM
(https://lh4.googleusercontent.com/-FiIuGHBAzuA/TkwKkLHzO8I/AAAAAAAAAMg/KTU5my2hcJ4/s640/IMG_20110817_141955.jpg)
(https://lh5.googleusercontent.com/-vjpVH4kqENE/TkwKlGsU9qI/AAAAAAAAAL8/ShodaT9qBPQ/s640/IMG_20110817_142010.jpg)
(https://lh4.googleusercontent.com/-vvPu2t3NVvQ/TkwKnfsGxOI/AAAAAAAAAME/FgEEEKfM3S8/s640/IMG_20110817_142027.jpg)
(https://lh4.googleusercontent.com/-756Tm7mx6dg/TkwKnBWnkcI/AAAAAAAAAMA/cFNfU-dh4Lo/s640/IMG_20110817_142040.jpg)
Title: Re: New guy with a K75s cafe/rat bike
Post by: bobw on August 21, 2011, 06:30:48 PM
I like it!

Cheers
Title: Re: New guy with a K75s cafe/rat bike
Post by: johnny on August 21, 2011, 07:03:15 PM
that thing needs a 22 liter to be truly radd...

j o
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on August 21, 2011, 07:14:09 PM
Quote from: johnny on August 21, 2011, 07:03:15 PM
that thing needs a 22 liter to be truly radd...

j o

I'm working on making it more cafe and less rat.
Title: Re: New guy with a K75s cafe/rat bike
Post by: frankenduck on August 21, 2011, 07:35:23 PM
Where's the license plate? ???
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on August 21, 2011, 07:37:16 PM
Quote from: frankenduck on August 21, 2011, 07:35:23 PM
Where's the license plate? ???
I haven't made it to the DMV yet  ;D
Title: Re: New guy with a K75s cafe/rat bike
Post by: Motorrad80 on August 25, 2011, 02:56:53 PM
Cool! I saw that bike on the daytona craigslist. Question, I am turning my bike into a cafe too, what r u doing for a speedo? I can't see it in the pics.
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on August 25, 2011, 04:49:08 PM
Quote from: Motorrad80 on August 25, 2011, 02:56:53 PM
Cool! I saw that bike on the daytona craigslist. Question, I am turning my bike into a cafe too, what r u doing for a speedo? I can't see it in the pics.
It didn't have one when I bought it. I am in the process of installing a Trail Tech Vapor dash. The idiot lights are a bit of a pain to wire up, but when is wiring anything into a BMW easy?
Title: Re: New guy with a K75s cafe/rat bike
Post by: frankenduck on August 25, 2011, 05:46:00 PM
FYI: Since it doesn't have an instrument cluster then you can only start it with the clutch pulled in since the ability to start the bike in neutral is wired into the circuitry of the gear indicator in the OEM instrument cluster.  However, you can emaulate that if you wire three relays in series to the yellow/blue, yellow/black and yellow/white wires from the gear position switch on the back of the transmission.

You might find this helpful: Instrument Cluster Pinouts & Wire colors (K75 and 86+ K100) (http://www.motobrick.com/index.php?topic=889.0)         
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on August 25, 2011, 08:31:06 PM
Thanks, I have been using the wire diagram but this cuts out much of the work.
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on September 02, 2011, 05:09:31 PM
Quote from: Motorrad80 on August 25, 2011, 02:56:53 PM
Cool! I saw that bike on the Dayton grisliest. Question, I am turning my bike into a cafe too, what r u doing for a speed? I can't see it in the pics.

I am not 100% sure if I'm keeping the turn signal lamps or change them to high beam and something else. I can see the front signals so the dash lights are a bit redundant.

(https://lh3.googleusercontent.com/-iEyYq4AOr3Y/TmFB5GoZ8YI/AAAAAAAAANE/Nlmh_T1cusQ/s640/IMG_20110902_164143.jpg)

Yes I know the wiring is a mess I'm not finished rewiring everything.
Title: Re: New guy with a K75s cafe/rat bike
Post by: Motorrad80 on October 07, 2011, 10:20:53 PM
Cool. Looks good. Sooooo what brand? How much? Easy to wire? ;D
Title: Re: New guy with a K75s cafe/rat bike
Post by: Flick on October 08, 2011, 02:52:11 AM
Quote from: Motorrad80 on October 07, 2011, 10:20:53 PM
Cool. Looks good. Sooooo what brand? How much? Easy to wire? ;D
It seems to be cheapest dash I could find that gives all the information I wanted; water temp, rpm, speed, trip odo, and dash lights. Plus it has programmable 2 stage shift and over temp lights built in.

computer=$130
dash lights =$55
http://trailtech.net/adventure_vapor_kits.html (http://trailtech.net/adventure_vapor_kits.html)

With the information on motobrick's workshop forum and the instructions that came with the computer it's all pretty simple to wire. The hard part is picking which lights you want.

I have included the computer and dash lights user manuals. This comes in the box but will help you decide if you think its right for you
http://www.trailtech.net/media/instructions/computers/vapor/vapor_instructions.pdf (http://www.trailtech.net/media/instructions/computers/vapor/vapor_instructions.pdf)
http://www.trailtech.net/media/instructions/computers/shared/010-ELV-10.pdf (http://www.trailtech.net/media/instructions/computers/shared/010-ELV-10.pdf)
http://www.trailtech.net/media/instructions/barclamps/010-ELV-20.pdf (http://www.trailtech.net/media/instructions/barclamps/010-ELV-20.pdf)
Title: Re: New guy with a K75s cafe/rat bike
Post by: ned37 on October 08, 2011, 12:09:04 PM
Quote
Since it doesn't have an instrument cluster then you can only start it with the clutch pulled in since the ability to start the bike in neutral is wired into the circuitry of the gear indicator in the OEM instrument cluster.
so i'm cornfused.  my bike has a defective indicator and only displays 4 and 5.  5 is 1st gear, 4 is neutral, blank for second and third and 4 for 4, 5 for 5.  it starts anywhere without a clutch.  all the safety switches are disabled.
Title: Re: New guy with a K75s cafe/rat bike
Post by: frankenduck on October 08, 2011, 12:20:40 PM
Quote from: ned37 on October 08, 2011, 12:09:04 PM
so i'm cornfused.  my bike has a defective indicator and only displays 4 and 5.  5 is 1st gear, 4 is neutral, blank for second and third and 4 for 4, 5 for 5.  it starts anywhere without a clutch.  all the safety switches are disabled.

It probably wouldn't be a bad idea to figure out why the clutch switch doesn't work.  When the clutch is pulled in you should get 12V+ at the black/green wire for the right hand combo switch.

GO HERE (http://www.motobrick.com/index.php?topic=517.0) for info on how to troubleshoot your gear position indicator.
Title: Re: New guy with a K75s cafe/rat bike
Post by: Motorrad80 on October 08, 2011, 07:31:28 PM
Quote from: Flick on October 08, 2011, 02:52:11 AM
Quote from: Motorrad80 on October 07, 2011, 10:20:53 PM
Cool. Looks good. Sooooo what brand? How much? Easy to wire? ;D
It seems to be cheapest dash I could find that gives all the information I wanted; water temp, rpm, speed, trip odo, and dash lights. Plus it has programmable 2 stage shift and over temp lights built in.

computer=$130
dash lights =$55
http://trailtech.net/adventure_vapor_kits.html (http://trailtech.net/adventure_vapor_kits.html)

With the information on motobrick's workshop forum and the instructions that came with the computer it's
all pretty simple to wire. The hard part is picking which lights you want.

I have included the computer and dash lights user manuals. This comes in the box but will help you decide if you think its right for you
http://www.trailtech.net/media/instructions/computers/vapor/vapor_instructions.pdf (http://www.trailtech.net/media/instructions/computers/vapor/vapor_instructions.pdf)
http://www.trailtech.net/media/instructions/computers/shared/010-ELV-10.pdf (http://www.trailtech.net/media/instructions/computers/shared/010-ELV-10.pdf)
http://www.trailtech.net/media/instructions/barclamps/010-ELV-20.pdf (http://www.trailtech.net/media/instructions/barclamps/010-ELV-20.pdf)

Awesome! Thanks for the info. I like it, think I'm going to do the same thing.