Re: Boyer ignition problem

Posted by hendred on May 02, 2020; 8:52am
URL: http://silk-motorcycles.221.s1.nabble.com/Boyer-ignition-problem-tp5001882p5001887.html

Your Boyer really is going backwards!  Another boring night on TV so thinking about how the Boyer pick up works. This may be a bit left field but may help understand what is going on.  The pick up generates an AC voltage wave in the coil as the magnet passes the coil.  If the wave form is positive followed by negative reversing the direction of rotation will produce a negative followed by positive wave form.  The Norton Boyer box works for either direction of rotation so the electronics must be able to detect the direction of rotation from the wave form.  The system you have seems to be working as the strobe and Boyer testing demonstrates.  I understand the rotating magnet has to be modified to fit the Silk.  If the magnets are turned over it has the same effect as reversing direction of rotation of the rotor.

I don't have a Boyer rotor to hand to know if this is possible, try turning the magnets over on the rotor and see what happens.  This should make the Boyer think it is going the opposite way round and give the correct direction of advance.

I'll send a PM for your email to send you the Lumenition write up. It is for the Mark 17 type but may be of some help.