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imdying
29th April 2009, 11:08
Can someone point me towards some literature on ignition systems on these bikes? Theory or practical, either is fine.

It appears as if it's a flat (i.e. no) advance curve? Any rules regarding vac/centrifugal type advance curves?

Ray LeCheminant
30th April 2009, 20:06
Malcolm - Greg has all the shiz on this - there is not a lot to it really....

CookMySock
30th April 2009, 22:38
I understand there is a rudimentary "advance" curve caused by some interaction between the coil and the flywheel. I read something about it years ago.

But if you want to hack, start here ;

http://www.google.co.nz/search?q=cdi+microcontroller

Steve

imdying
1st May 2009, 10:02
Malcolm - Greg has all the shiz on this - there is not a lot to it really....

Not a lot to what, ignition systems on minimotos, or what the rules will allow?

Gadgit
2nd May 2009, 08:52
The ign is flat your bang on there. There used to be a rule about "no ignition curves allowed" for open class but only two or three people knew what it actualy ment so I don't think it was put into this years rule book. I have never come across an advance/retard set up on one of these little engines yet but I would imangin it would make a huge difference to your power band and clutch wear.