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to your vintage motorcycle



Technical Help



System 70 89 999 00

generator / electronic ignition for BMW R27  

for reference only, discontinued. The R27 has by design a very short kickstarter travel. Our systems are magnetos. magnetos need a certain starting revolution which could not be securely reached by the R27. As demand has been fairly low (in stark contrast to the system for R25/26 on which such technical problems have not been noticed) we discontinue the system. We still offer spares however.
Magnet based generator with integrated solid state ignition. Output at 12V/100W DC. Ignition with own power supply from within the system. Replaces original 6 Volts dynamo LJ/CJE/60/6/1800/R5 and regulator as well as all ignition parts.

Does not require changes on crankcase. The system is technically capable of running without battery.

advantage over original system:
  • all parts are new
  • solid state ignition and advance
  • more light output (with light bulb 40/45W)
  • very stable ignition with solid spark
  • better starting, better fuel burning
  • no wear anymore on collector, govenor and points

Important advice: The R27 is originally provided with a battery ignition, now it is a magnet ignition system. There is a an advantage, but there is also a drawback and important difference. To start you need about 300 revs on the crankshaft which means you will have to kickstart rather speedily. A slow kick will not start this system. 
Unfortunately the R27 has a pitiful kickstarter mechanism.