HeadSmess
Well-Known Member
- Local time
- 9:45 AM
- Joined
- May 17, 2010
- Messages
- 3,048
that bike is...how old?
wow... give us a full pic!
um. yeah...
the magneto generates electrizzity in the coils youll see behind the magneto. if it only has one coil in there it will definitely be dirt only, two usually means ones a generator for lights battery chargin etc.
the points are closed and power generated travels to the ignition coil.(what you are missing!) this builds up a large magnetic field in the coils core.
the points then open, the magnetic field collapses super fast, and creates a high tension "back" EMF, or voltage... there is then a secondary coil over the first one, with heaps more turns. it transforms the high emf in the primary coil to an even higher emf, that then goes to the spark plug.
its very simple
all you need to worry about is the coil, the points and possibly the condensor.
if you cant find a manual with the schematic, (a quick google shows its hard...) get a multimeter. one end earthed, check each wire while turning the engine over(slowly, by hand). the one that turns on and off is the one! usually red... or pink? otherwise use a light bulb, and turn it over fast!
check the points BEFORE doing the continuity test, otherwise you might find nothing happens...
if you order a coil absolutely ANY coil from a NON-CDI type bike will work. so dont spend too much just cus its model specific...honda, zuki, kwaka, whatever... 84 and earlier.
you can even gut a 9v transformer and that would work! briefly...they arent designed for it
have fun learning about dwell, advance, retard, and theres another one...ohh! dirty points...
wow... give us a full pic!
um. yeah...
the magneto generates electrizzity in the coils youll see behind the magneto. if it only has one coil in there it will definitely be dirt only, two usually means ones a generator for lights battery chargin etc.
the points are closed and power generated travels to the ignition coil.(what you are missing!) this builds up a large magnetic field in the coils core.
the points then open, the magnetic field collapses super fast, and creates a high tension "back" EMF, or voltage... there is then a secondary coil over the first one, with heaps more turns. it transforms the high emf in the primary coil to an even higher emf, that then goes to the spark plug.
its very simple
all you need to worry about is the coil, the points and possibly the condensor.
if you cant find a manual with the schematic, (a quick google shows its hard...) get a multimeter. one end earthed, check each wire while turning the engine over(slowly, by hand). the one that turns on and off is the one! usually red...
or pink? otherwise use a light bulb, and turn it over fast!check the points BEFORE doing the continuity test, otherwise you might find nothing happens...
if you order a coil absolutely ANY coil from a NON-CDI type bike will work. so dont spend too much just cus its model specific...honda, zuki, kwaka, whatever... 84 and earlier.
you can even gut a 9v transformer and that would work! briefly...they arent designed for it
have fun learning about dwell, advance, retard, and theres another one...ohh! dirty points...
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