For projecting and manufacturing a new ignition/lighting
unit, to replace an
external flywheel
magneto (e.g. Bosch, Motoplat, SEM or Kokosan),
we need to know the following:
(You will find
additional information via the links in the text below)
|
What kind of motorcycle? |
- make (please photo of type plate)
- year of manufacture
- engine number
- 2- or 4-stroke, number of cylinders
- displacement (cc) and compression ratio
- electric starter? where does this starter
- has the engine been modifeied after market
|
It's important to know, what you need: |
- ignition and light (for very old and/or small bikes
see also our 6V/18W material)
- ignition only
- lights only
|
To better understand what has to be done and to make you a
detailed offer we will need a few photos: |
|
data for the original lighting/ignition system |
- inscriptions on the rotor
- diameter, height and weight of the rotor
- diameter of stator plate (the plate that carries the coils)
- how many fastening screws and what size for the stator plate
- are there any added functions to the stock ignition
(throttling in speed, rev limiter, powervalve etc)
- is anything screwed to the flywheel (rotor), such as sprocket, fan,
pulley, tachodrive etc)
- in what direction does the rotor turn, clockwise
or anticlockwise
- very important: what is the distance
between rotor and base plate as per sketch here
- Are there some references in the user's manual?
- originally 6 or 12V? alternating or
direct current or mixed
voltage?
- has there been a battery?
- Horn is for direct current or alternating current? If alternating,
can this be sensibly replaced by a modern DC one?
- legible copy of the original wire diagram
|
A few points tend to be easily forgotten and than cause
trouble. So we need to know |
|
Once we have got all this information (maybe after
a few additional questions) |
- we will make you a detailed offer
|
If you accept this offer, we will need your stock (original)
generator/ignition
system
|
- to take dimensions (We will not temper with it in any way,
you get it back as it was)
- please also add the fastening elements, such as fastening screws
for base plate and nut or screw for rotor
|
Back to "What to do
for a new system" |