No carbons, no collector, no points or govenor problems any more. And sure, no need to modify engine casing.

• Does not support the original safety relay that prevents starting into an already running engine.
• Does not support any existing electronic revolution counter. If you want a rev meter, have a look at our info here.
• Has only 150watts (ignition power however additional to that) and offers therefore less electric power than original alternator.
• This is not a tuning system to get more performance. This is a replacement kit for material no longer available, simply to keep the bike running.

• may run without battery
  (see however notes on that here)
• all parts are new
• no wear anymore on carbons and collector

• assembly instructions
• wiring diagram battery version
• wiring diagram without battery
• parts in the pack (photo)

• the installed new system
• same view without engine cover
• the installed new stator coil
• timing - position at maximal advance
• timing - position at top dead center
• graphical illustration timing