SOHC.co.uk Forums > CB350/400

Electronic ignition choices

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K2-K6:
Thought there's two type of Dyna (as with Boyer originally) to make use of std or lowered primary resistance coils. That should mainly be dwell time difference in trigger system to accommodate each specification.

Really though, most of them work pretty well on these engine.

Their task is made easier though by Honda's original design taking care of most variables claimed (usually based on car systems) that electronic "fixes" for the owner.
The Honda original is almost peerless in design and lacks for nothing if built and set correctly. There's little room to improve anyway, that's from a basic design concept.
Replacement system of course do deal effectively with component availability and skill in setting them up, but they will perform the same essentially as an original type when fitted mostly.

Johnny4428:
Personally when I purchased and fitted the DS electronic ignition to the 550 it seemed to simplify the system in that it was a lot easier to set and forget than the points/condenser system. The old system did fine for 30 odd years but when I gave the bike a full restoration I wanted to eliminate as much as possible any possible “gremlins” . Weather better in the long run? Who could say! But worked for me, probably old system would work just as well.😜

philward:
I have the Boyer system (Inc power coils) on my CR750 Rep - good but you will have to make up a bracket to accommodate the coils. They perform well but haven't put much mileage on them - but had them for 30000 on my Z1 back in ty 70's and was trouble free.
I have Hondamans system on both my 500k2 and 750k2 - good value and cheap. Mark (Hondaman on the US forum) usually puts them down as return of repaired parts so no import duty (he did for me anyway)

Sent from my moto g(50) using Tapatalk

Athame57:
When my electronic ignition of unknown age went up in smoke a few years ago I simply took the one offered by David Silver Spares. It hasn't missed a beat. If you choose to do likewise note that it is compitable only with the  TEC branded Automatic Timing Unit (ATU) and not the (rarer?) Nippon Denso type.

McCabe-Thiele (Ted):
DS now cover both Nippon Denso & Tec for the 400 they are listed separalely on the 500 you specify on ordering which make advancer you have.

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