Part 1: Purchase and Assessment; Part 2: The Restoration; Part 3: Improvements
Over the years I made some improvements. After mounting the Siebenrock Power kit the torque was significantly increases, and therefore I drove at much lower rpms. The old BOSCH alternator did not charge the battery at this low revs so I ended up several times with empty battery even when driving. I therefore replaced the Bosch unit with a SilentHektik alternator.
In 2022 the bike did not start well and ran very roughly. After rebuilding the carburetors re-built did not improve the situation I took the ignition apart, set it up on a test rig, it produced sparks, but I could not test it in compressed air-fuel mix, but I assumed the the ignition might be the cause. I bought a SilentHektik race ignition and that completely solved the problem.
Below is the fact sheet that I had prepared for the Motobuilt Filipinas 2017