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Dominator Boyer Bransden problems

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Dominator Boyer Bransden problems

Posted by stewart_potter at June 25. 2017

I am getting an intermittent fault with the Boyer electronic ignition

on my Dominator.

Sometimes I get sparks when I turn the ignition off or on and

this can detonate the fuel left in the cylinder.

Sometimes it works with no problems.

I have double-checked the circuitry and am at a complete loss. I tried

taking the two wires which go to the stator plate and tried touching

these/taking them apart.

This produces sparks repeatedly so it seems to me that the coil

circuitry must be good or I wouldn't be getting any sparks at all.

Any suggestions would be gratefully accepted.

The bike was lying idle for some five years until recently when I

re-commisioned the bike, but this missing sparks problem has

me completely beat.

 

Re: Dominator Boyer Bransden problems

Posted by john_holmes at June 25. 2017

See my answer under your post in Commando.

Re: Dominator Boyer Bransden problems

Posted by Alan Osborn at August 04. 2017
I would almost guarantee that your problem is a tarnished ignition switch. Or depending on the particular ignition switch your could have loose rivets if you have terminals on the back. But either way investigate the switch.

Re: Dominator Boyer Bransden problems

Posted by robert_tuck at August 04. 2017

I thought getting a random spark was normal when turning a Boyer on and off?. or do I have a problem too?.

Re: Dominator Boyer Bransden problems

Posted by David Cooper at August 05. 2017

Sparking when switching off is also normal with Lucas RITA.  In fact it's the easiest way to test that it and the plugs are working.  As Robert says - nothing to worry about.  It should happen with regular old fashioned coil ignition - switching off is what the contact breaker does.  RITA (and Boyer) just amplify the result.

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