Alright, let’s talk about this BMW R100CS motorcycle I’ve been messing around with. I’ve always been a fan of these classic bikes, and the R100CS, man, it’s a beauty.

So, I finally got my hands on one. It’s a 1984 model, and from what I’ve read, they only made them in classic black and pearl white that year. Mine’s the classic black, looks really sharp.
Getting Started
First thing I did was just look it over, you know, get a feel for it. It’s got this 980cc engine, a boxer twin, air-cooled. Sounds amazing when you fire it up. They say it puts out about 60 or 70 horsepower, depending on the year, and around 75 or 76 Nm of torque. That’s plenty for a bike this size. It’s got a five-speed transmission, pretty standard stuff.
Taking It Apart
- Checked the Engine: I started by giving the engine a good once-over. Looked for any obvious leaks or anything out of place. Everything seemed pretty solid, which was a relief.
- Fuel System: Next, I took a look at the fuel system. Drained the old gas, checked the fuel lines, made sure the carbs were clean. You know, the usual stuff.
- Electricals: Wiring can be a nightmare on these older bikes, but I got lucky. Most of it was in decent shape. Just had to replace a couple of frayed wires and clean up some connections.
Putting It Back Together
Once I had everything apart and cleaned up, it was time to put it all back together. This is the part I really enjoy. It’s like a big puzzle, and when you’re done, you’ve got a running motorcycle.
- Engine Reassembly: I carefully put the engine back together, making sure everything was torqued to spec. This is where a good manual comes in handy.
- Fuel System Reinstall: Reinstalled the fuel tank, connected the fuel lines, and mounted the carbs. Double-checked everything for leaks.
- Wiring Connections: Reconnected all the electrical components, making sure everything was properly grounded. Tested the lights, horn, and everything else to make sure it was working.
The First Ride
Finally, the moment of truth. I put some fresh gas in the tank, turned the key, and hit the starter. The engine roared to life, and I couldn’t help but grin. Took it for a short ride around the block, and it felt great. Smooth power delivery, solid handling, just a joy to ride.
Final Thoughts
This R100CS is a keeper. It’s a classic for a reason. It’s not the fastest bike out there, but it’s got character, it’s reliable, and it’s just plain fun to ride. Plus, it turns heads wherever you go. If you ever get a chance to pick one up, I highly recommend it. You won’t regret it. It’s a solid machine, and with a little love and care, it’ll run for years to come. I’m stoked to have it in my garage, that’s for sure. This bike feels great and very strong.
