The Belgian Warhorse - Honda Africa Twin XRV 750 RD04 1992 - Part 1

Submitted by Koen on Sat, 03/01/2025 - 10:30

The hunt for a Honda Africa Twin RD04

To be honest, I was perhaps a bit jealous when Jo bought his Africa Twin RD07.
While Jo is building / turning his Africa Twin into a very custom one, I'm more into keeping it as stock as possible. 

Inspired by Adam Riemann's Warhorse I went looking for and RD04.
It wasn't easy, as there are not a lot of them on the Belgian market.
Those who are on the market are sold very quick, or are in really bad shape. 

After missing out on a very good RD04 (had upgraded suspension and some nice updates already) I found this little gem. 

Jo and I endured a little Belgian snowstorm when visiting the bike for the first time, but when we got there the Africa twin immediatly conquered my heart.

A diamant in the rough

Let's be honest here, when we bought the Africa Twin, it had some issues:

  1. It didn't have a battery. We tested the bike with another battery, so we were sure it was running.
  2. A well known issue with the output shaft. It's not up for replacement yet, but it will be coming.
  3. The rear wheel is having the typical corosion issue. We'll keep it until Winter 2025 and then replace it with Excel wheels.
  4. An old bike always has bolts that won't come loose... The. counter is at this point at 5 bolts that I had to drill out. 
  5. General maintenance is a bit lacking. 

So we built ourselves a list of things to do to get our Queen on the road again:

  1. Check / Adjust Valve Clearance (ongoing)
  2. Replace Oil & Filter
  3. Replace Air filter
  4. replace fork oil & springs)
  5. replace the rear shock
  6. Ride it like we stole it ;-) 

Already done?

  1. Service the brakes (replace all seals, pistons and replaced the brake lines for braided ones)
  2. Replaced the Neutral sensor
  3. Replaced the Sprockets (front one is a super pinion to reduce the load on the shaft)
  4. Got new tyres mounted
  5. Cleaned some greasiness
Before

Brake caliper could use some TLC, and it's getting it. 

After

After some blasting & Ultrasonic baths it's looking a lot better.
New seals and pistons seal the deal!

Along the way it starts looking better and better

As you can see, the new superpinion is a lot wider as the original sprocket.
It will spread the load on the shaft a bit more, and as such reducing the wear.

The bolt covering the crankshaft was seized, it took a bit of brute force to get it out.
But nothing a hammer & screwdriver can't fix.