Dolphin coil ignition

Ian Savage

VOC Vice President
VOC Member
We have been asked if anyone out there has information, pictures or parts to be able to convert a fixed Dolphin coil ignition unit to manual advance.
Ex racer is putting his old chopped Vin motor in a Norton frame for road use.
Any help greatly appreciated.

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Well Known and Active Forum User
VOC Member
All I have.



  • Dolphin Ign 01.pdf
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  • Dolphin Ign 02.pdf
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  • Dolphin 03.pdf
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Well Known and Active Forum User
VOC Member
I believe the folks at Tri-Spark will modify one of their twin cylinder units to suite a Vincent twin with the Dolphin unit.
I asked a while back and they said "It just requires an adjustment to the positions of the magnets in the rotor. We can do that here for $40 extra". If you want to stick with points, here's a photo. If you need more info or photos, let me know.