87 K75 Complete Rebuild

[Martin]

 :2thumbup: Yeeee Haaaaa

[ED]

wow! that gold frame looks amazing.

[herseyb]

looks great in the more natural light!  I change my mind.    You gonna put a heat shield back on the muffler?

[TrueAce]

Victory! Congratulations!44 :2thumbup:
But you know the curse: once you ride an uncompleted project, you will never get it finished! :clap:

[frankenwing]

looks great in the more natural light!  I change my mind.    You gonna put a heat shield back on the muffler?

I am. Just need to clean it up first. Eventually I'd like to replace the muffler with a shorter one.

But you know the curse: once you ride an uncompleted project, you will never get it finished! :clap:

Thats true, probably why i never finish any of my bikes 100%

[broberg]

It looks really good dude!

Now finish it already ;)

[frankenwing]

Workin through the bugs! Got the temp gauge working last night. Good thing too. Riding this morning to work I noticed it going a hair of 3/4. So it's running too hot. Gonna have to start replacing stuff: thermostat/seals/gaskets. Flush coolant again. Fan works fine, I have it wired up with a manual switch so i know its on.

Fuel gauge still not coming on. Haven't tested the wiring on it yet though.

Gotta replace the breather hose, and waiting on radiator shrouds to ship.

So far though, no leaks! And motor is running beautifully. I'm currently also shopping for an external steering damper (the internal one was shot and I removed it).

[frankenwing]

Progressing.. And enjoying more rides. Running great now that I replaced the crank breather hose.







Letting all the children out to play

[kennybobby]

Now we see where the frankenwing came from...

The k75 is looking really nice--great build for sure.

[frankenwing]

Now we see where the frankenwing came from...

Good eye. That is correct. Here are a couple of better views of it. Chopped the backend off, built a monoshock. Those are Weber IDF40 carbs off of a vw/porsche. Very old tractor seat. Harley split tanks. had to chop and reshape the top of the frame to suit actual gas tanks, and rearrange the electronics. Runs very hard, brings a smile to my face every time I go for a ride on it.

[frankenwing]

Minor updates: Getting ready for a trip next weekend. Got a 35 liter topcase and color matched the lid. Attached a universal windshield. And replaced the stock expansion tank with something a little more interesting. Kinda forgot to get a pic of that though... 😐

Also received my badges from EX-BMW (https://www.instagram.com/exclusivebmwparts/)

[Shiny]

What windscreen is that? Looks great. How's it ride?

[frankenwing]

Rides pretty good 👍🏼 doesn't block all the wind, but you'll feel the improvement

Got it from here: https://www.amazon.com/gp/product/B000GTUM9O/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1

[Vespa no more]

Any chance of details on the mountings for the tractor seat with pics?
I think it looks especially nice. Coupled with the downdraft carbs .... good gear.

Well done.

Can see another project lurking in the background.
Couldn't do it all without the air-conditioner in the garage!

Enjoy the ride

GF

[frankenwing]

Any chance of details on the mountings for the tractor seat with pics?

Since this is a goldwing, there was a lot of frame modification to do first. Aside from chopping the back-end off to make the monoshock; i chopped the top portion of the frame and fabricated a "neck" (to accommodate the split tanks) and then a square tube coming off of the neck to support the seat.

Here is the neck and square tube


Then the tractor seat is mounted using only 2 bolts, a couple different oddly shaped washers and spacers. The 2 bolts simply go straight down through the top of the square tube frame.

Can see another project lurking in the background

Yup, I've gotta get back on it now that I'm running around on the BMW. That's my wife's CB350four. Right smack-dab in the middle of that build. Left off with reshaping the tail section of the frame. This one's a fun project. 👍🏼 In the meantime, my wife's been riding my GB500 around. Keeping it warmed up 😁

Couldn't do it all without the air-conditioner in the garage!

Agreed! That AC is the reason I've been able to hang out there so much this summer. But now I'm going to need to get a proper heater out there too, in the words of Jon Snow: "Winter is coming"

[Inge K.]

Minor updates:  Got a 35 liter topcase and color matched the lid.

That is a 50 liter topbox, search pictures of a K1100LT and you would see what a 35 liter look like.

[frankenwing]

That is a 50 liter topbox, search pictures of a K1100LT and you would see what a 35 liter look like.

Even better 👍🏼 Got it super cheap too $75

[Inge K.]

Keep an eye inside the ducktail now and then......it was only available on the K100LT for a short period
because it become a problem as the ducktail cracked because the long weight arm and the heavy Box.

[Vespa no more]

Couldn't see the pic of the neck and the square tube ... please re-post if okay

Regarding the cracking of the tail piece - I expect a metal plate on the inside will share the load and hopefully stop the rot.

Make sure to keep the missus happy ... a source of either 50% of the money or the permission.

Well done on your efforts and good luck in the future

Regards

Guy

[frankenwing]

Keep an eye inside the ducktail now and then......it was only available on the K100LT for a short period
because it become a problem as the ducktail cracked because the long weight arm and the heavy Box.

I actually caught that a couple days ago riding. I thought it seemed like the top case was movin vibrating more than it should (shouldnt at all really). I saw the tail section wanting to crack so I reenforced it with a couple of broad brackets, problem solved.

Couldn't see the pic of the neck and the square tube ... please re-post if okay

Not sure why you can't see them. But I'll attach them here

[Laitch]

Parking body weight on a vibrating cantilever sure adds to a motorcycle adventure. What type of welding was used?

[frankenwing]

It was MIG. And I'm happy to report that this setup (on the goldwing) has been working flawlessly for 40,000 + miles :)

[Laitch]

And I'm happy to report that this setup (on the goldwing) has been working flawlessly for 40,000 + miles :)

:clap: