Author Topic: Hello new K75 owner here bought off ebay,  (Read 2261 times)

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Hello new K75 owner here bought off ebay,
« on: July 12, 2017, 08:49:13 PM »
Hey guys just bought a 1985 k75 off ebay for $450 hopefully i can get it running and enjoy it like you guys do, the bike needs some love but i will do all the work my self.
Got new fuel filter,fuel pump,spark plugs,oil filter, going to try to recharge battery if not buy a new and hopefully it will start.


Just got delivery of it last night so this weekend i will have time to work on it, here are some pics
Thanks



  • GA
  • K75

Offline mlytle

  • ^ SuperNatural Motobricker
  • Posts: 962
Re: Hello new K75 owner here bought off ebay,
« Reply #1 on: July 12, 2017, 09:46:46 PM »
Welcome!  Looks good but appears to have not been on the road for half dozen years.  Lots of refreshing to do.  Links in my sig line may help.
  • alexandria, va
  • 92 K75s, 94 K75s, 96 K1100RS SE (custodian), 09 K1300s
Marshall
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline Christopherguzzi

  • My first Beemer🏍.
  • ^ Proficient Motobricker
  • Posts: 126
  • It ran when it was parked........27 years ago😳.
Re: Hello new K75 owner here bought off ebay,
« Reply #2 on: July 12, 2017, 09:59:55 PM »
Welcome Gr-Racing.  Good to see another K75C on the forum.  Good luck with the project!!!


Note: I'm jealous that you got a top box and tragkorb brackets.  Mine came stock naked, but with low mileage, after many years of storage.
  • Little Canada, Minnesota
  • 1986 K75C
Christopherguzzi

Online Martin

  • ^ Quintessential Motobricker
  • Posts: 3639
Re: Hello new K75 owner here bought off ebay,
« Reply #3 on: July 13, 2017, 02:46:30 AM »

Welcome to the asylum from the land of OZ. Beware low battery voltage can cause the starter relay points to fuse together. When this happens the bike will just keep on cranking until you remove the earth lead. Bricks need good batteries.
Regards Martin.

  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4291
Re: Hello new K75 owner here bought off ebay,
« Reply #4 on: July 13, 2017, 09:31:12 AM »
Welcome!  As mlytle has said, after 6 years in storage, there will probably be some challenges due to old fuel. 

What does the inside of the fuel tank look like?  That should be one of the very first places to invest some time.  There are some good ideas here for getting rid of the crap that may be in there. 

Doesn't look like it's been stored outdoors, but nonetheless, get some DeOxit D5 electrical cleaner and start cleaning all the electrical connections.  A bit of silicone electrical grease after they're clean will help prevent further corrosion.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too

Offline BrickMW

  • ^ Proficient Motobricker
  • Posts: 126
Re: Hello new K75 owner here bought off ebay,
« Reply #5 on: July 13, 2017, 09:40:42 AM »
hopefully i can get it running and enjoy it like you guys do, the bike needs some love but i will do all the work my self.


You've come to the right spot!  :2thumbup:


Welcome.. lots of great info and helpful people here.


How many miles on that beauty? Do you know how long it's been sitting?
  • Huntsville, AL
  • 1986 K75c
Luft & Jager... My two favorite Meister's :bmwsmile

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #6 on: July 13, 2017, 08:24:27 PM »
Thanks for the warm welcome guys , i think it hasent move in 6 years but it was in a garage so i got hope that it might work after some love, guys super noob question i took the battery of and did not label the wires so im going to ask before i cross the ecu.
Is their 3 + wires and 1 - wire?


Thanks
  • GA
  • K75

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #7 on: July 14, 2017, 03:35:47 AM »
So i finally got the gas tank out and i think this bike stop running cause some one piy farm disel the red one.

  • GA
  • K75

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4291
Re: Hello new K75 owner here bought off ebay,
« Reply #8 on: July 14, 2017, 07:39:07 AM »
Are you sure it's diesel?  Someone could have put gas stabilizer in the fuel which will turn it red. 

In any event, it's a good idea to drain it and check the interior for dissolved rubber parts.  Get the old fuel filter out and replace it with a NAPA Gold 3032 and some new fuel lines which should be the expensive submersible type. 

Then refill with corn-free gas and a bottle of Techron to clean out the varnish from the rest of the system.  With any luck, the stabilizer will have prevented a lot of the crap that results from old ethanol. 
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too

Offline BrickMW

  • ^ Proficient Motobricker
  • Posts: 126
Re: Hello new K75 owner here bought off ebay,
« Reply #9 on: July 14, 2017, 09:29:52 AM »
+1 on the sta-bil -- That would be very good news!


Pretty sure you are right on the battery connections.. although mine only has 2 pos and 1 neg. I'm not sure about that 3rd lead.  :dunno2:
That looks like the earth ground to the trans. case you are holding in the picture. (Batt-)
  • Huntsville, AL
  • 1986 K75c
Luft & Jager... My two favorite Meister's :bmwsmile

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #10 on: July 14, 2017, 11:42:28 AM »
Are you sure it's diesel?  Someone could have put gas stabilizer in the fuel which will turn it red. 

In any event, it's a good idea to drain it and check the interior for dissolved rubber parts.  Get the old fuel filter out and replace it with a NAPA Gold 3032 and some new fuel lines which should be the expensive submersible type. 

Then refill with corn-free gas and a bottle of Techron to clean out the varnish from the rest of the system.  With any luck, the stabilizer will have prevented a lot of the crap that results from old ethanol.


It had a nasty very strong smell but i think the stabilizer makes more sense thanks for the help, i will drain/clean change filter and pump and the fuel lines and give it a crank

  • GA
  • K75

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #11 on: July 14, 2017, 11:43:10 AM »
+1 on the sta-bil -- That would be very good news!


Pretty sure you are right on the battery connections.. although mine only has 2 pos and 1 neg. I'm not sure about that 3rd lead.  :dunno2:
That looks like the earth ground to the trans. case you are holding in the picture. (Batt-)


Thanks for the help
  • GA
  • K75

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #12 on: July 15, 2017, 07:23:35 PM »
My daily car bmw F30 got jelly and i got to give some love and change spark plugs, they got burn

[IMG]https://s14.postimg.org/3k7ryv7b5/IMG_4820.jpg[\IMG]

[IMG]https://s14.postimg.org/mdtkvv5j5/IMG_4821.jpg[\IMG]
  • GA
  • K75

Offline sci

  • Motobrick Curious
  • Posts: 26
Re: Hello new K75 owner here bought off ebay,
« Reply #13 on: September 27, 2017, 12:17:30 PM »
Great buy. How many miles does she have?
  • Battle Creek, Nebraska
  • 93 K75

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #14 on: December 08, 2018, 09:15:00 AM »
haven't posted in a while made another thread in the correct area of my progress
http://www.motobrick.com/index.php/topic,11976.0.html



  • GA
  • K75

Offline Barry in IN

  • ^ Proficient Motobricker
  • Posts: 163
Re: Hello new K75 owner here bought off ebay,
« Reply #15 on: December 08, 2018, 09:44:28 AM »
Sigh
  • Indiana
  • 1992 K75S Lili Von Shtuppe
A pox on cafe “builders”

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4291
Re: Hello new K75 owner here bought off ebay,
« Reply #16 on: December 08, 2018, 09:57:22 AM »
 :dunno
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too

Offline Barry in IN

  • ^ Proficient Motobricker
  • Posts: 163
Re: Hello new K75 owner here bought off ebay,
« Reply #17 on: December 08, 2018, 11:51:10 AM »
Another unique one.
  • Indiana
  • 1992 K75S Lili Von Shtuppe
A pox on cafe “builders”

Offline johnny

  • TrailBrakingThrottleWhacker
  • ^ Quintessential Motobricker
  • Posts: 6461
  • Whacking...n...Chopping Sliding...n...High Siding
Re: Hello new K75 owner here bought off ebay,
« Reply #18 on: December 08, 2018, 12:25:54 PM »
greetings...

unique as frame repaint with engine and driveline still in there... that is certainly unique...

j o
  • :usa#1 i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin :usa#1

Offline Gr-Racing

  • ^ Motobrick Curious
  • Posts: 57
Re: Hello new K75 owner here bought off ebay,
« Reply #19 on: December 08, 2018, 11:39:25 PM »
greetings...

unique as frame repaint with engine and driveline still in there... that is certainly unique...

j o



Thanks
  • GA
  • K75

Offline stokester

  • ^ Proficient Motobricker
  • Posts: 479
Re: Hello new K75 owner here bought off ebay,
« Reply #20 on: December 09, 2018, 04:13:32 PM »
 :dunno
  • Yorktown, Virginia
  • '94 K75S - '93 K75S - '91 R100RT - '78 R100S

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