Powerdynamo brings new ignition & light
to your vintage motorcycle
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Powerdynamo brings new ignition & light |
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Our 2-stroke systems (except a few) do not have an edvance unit for timing control. There is however some advance/retard during starting to ease this. The diagrams here shows timing of spark in depencence of engine speed in our internal sensor systems
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 click to enlarge picture |
The diagram here shows timing of spark in depencence
of engine speed in our sports systems with inner rotor. The line zero respresents the angle you set at point of installation by aligning stator and rotor markings with the piston in the wanted ignition position (say 2 mm before TDC which might be something like 25° or so). At start, something below 3000 revs ignition will happen later, nearer to TDC, here shown in the negative area of the graph. During main driving revs, say between 3000 and 10000 ignition happens in about the set timing (zero line) and in higher revs it again drops back a little towards TDC (the negative area here). This is something inherent in the material, but corresponds very well to what a 2-stroke engine would like.
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| It is possible to add special advance & retard units to 2-stroke systems (not to the internal rotor racing systems!) |
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