I completed installation of the fork and seat locks. I show the assembly of the seat latch mechanism and installation and also made a short video showing how I do the work.
VIDEO: 1983 BMW R100RS Install Fork and Seat Locks
Here is a link showing how I removed the locks.
I completed installing the rear end of the motorcycle. The fenders and rear lights will come in another post. You can read about how I did that work in these chapters of the “Assembly From The Frame Up” document:
Sub-Frame and Rear Shocks Mounted
Wheels Installed
It’s beginning to look like a motorcycle again 🙂
I put together a page showing the order in which I am assembling the bike on this project. I will add to it as I go. In most of this document I link to other pages I posted, but for some work that is not particularly detailed, I show how to do the work in the Assembly page.
There is also a companion document that shows how I disassembled the bike.
I also have documented the project work on a Project Index page that includes a list of every document I published for this project organized by parts fiche major component number.
Here is a link to the YouTube videos I’ve posted about this project on my channel.
Lastly, there is a complete archive of all the pictures on Flickr.
Previously, I replaced the swing arm bearings and you can read about how I did that here:
Now I install the swing arm in the frame and then install the rear drive on the end of the drive shaft side of the swing arm. I show how I align the swing arm in the frame to reduce stress on the drive shaft when I install it. The rear drive mounts easily to the flange on the right side of the swing arm with four 12-sided nuts.
Here is a link to the procedure:
And here is a video summarizing how I did the work.
VIDEO: 1983 BMW R100RS Install Swing Arm & Rear Drive
I had the swing arm powder coated and cleaned up and I refinished the rear drive that had been sprayed black with rattle can paint.
Rear Swing Arm Removed
Powder Coated Swing Arm
Right, Rear Drive, Top
Right, Rear Drive, Rear
Refinished Rear Drive
Refinished Rear Drive
Here is the final product.
Swing Arm And Rear Drive Installed
I decided to upgrade the fork top plate to a Toaster Tan fork top brace as I think it makes a sizable improvement in keeping the forks rigid and improves handling.
Toaster Tan Top Brace with Fork Tube Rings and Separate Steering Stem Cap Nut
Installing the fork top brace is part of the procedure for installing and aligning the front forks, so did all of this work at one time. But, I broke up the documentation into two parts covering the Toaster Tan fork top brace and the front fork installation and alignment.
I also made two videos summarizing the procedures.
VIDEO: 1983 BMW R100RS Install Toaster Tan Fork Top Brace
VIDEO: 1983 BMW R100RS/RT Install and Align Front Forks
Here is the finished product.
Toaster Tan Fork Top Brace & Forks Installed
Forks & Toaster Tan Top Brace Installed