Wrong position of the breaker plate - no spark

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old man emu
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Wrong position of the breaker plate - no spark

#1

Post by old man emu » Sun Jun 17, 2018 4:04 am

Came across an interesting problem recently trying to get a friend's bike started.

Despite checking, rechecking and having another look at everything to do with the ignition system and fuel system, my friend could not get his bike to start. There was no spark. Eventually he discovered the reason. The contact breaker arm was touching one of the screws and providing a path to earth at the time in the ignition cycle when the contact breaker was supposed to break the circuit in the primary windings to cause the induction of a current in the secondary windings. He readjusted the position of the breaker arm so that it doesn't touch the screw any more, and managed to get it to go bang.
wrong screw.jpg
wrong screw.jpg (14.73 KiB) Viewed 150 times



liberator
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Re: Wrong position of the breaker plate - no spark

#2

Post by liberator » Sun Jun 17, 2018 8:47 am

Been there..
Remove the washers from the screws.

old man emu
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Re: Wrong position of the breaker plate - no spark

#3

Post by old man emu » Sun Jun 17, 2018 11:34 pm

Thanks "Eagle eyes".

I must admit that I didn't compare his to mine ( that sounds soooo wrong). I didn't twig to the washers being there.

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