SOHC.co.uk Forums > CB350/400
Power consumption, E-ignition vs Points. also - spare advance cam?
McCabe-Thiele (Ted):
I've sent a PM I might be able to help.
Assuming that Honda paired the same brand of spark advancer with the ignition plate I have a Tec one that is from my 400.
If you check the diameter of the shaft the one I have is as follows.
Length/Height inc: flanged part 29.65 mm approx, Inside diameter at flanged section (inner face) 15.2 mm, main inside diameter of shaft 15.0-14.95 mm approx.
The ND one is substantially larger or smaller i/d I forget what way round it is
.
All measurements approx only taken with my calipers.
Trigger:
For a CB400, it has 333 number on it
Mikep328:
Thanks guys, I'll check it later this afternoon if I get to the garage. If not, tomorrow when I get back from having a new set of K82's mounted.
Mikep328:
Update: I ended up going back to the USA before continuing with this "project." While there I came across a complete points plate/advance unit in a garage sale for 10 USD! I checked the condensers with a real capacitor tester (not a multimeter) and they show good as far as capacitance and voltage. Points are original ND and look essentially unused.
Now I'm back in the UK eyeing these parts wondering whether I REALLY want to install the OEM system or just leave the perfectly functioning DSS EI in place. Logic/common sense would dictate leaving the EI; but I have this NON-common sense urge to have the points in there...
I haven't awakened the 400 yet from it's winter slumber - been too cold/wet for me but hope to do that sometime this week. It's probably not often that someone has a perfectly running machine and intentionally changes something that may make it less so and I can't think of any operational advantage that the points would provide! Yes, they will provide a spark with less voltage than EI but I haven't seen any case with my 400 where low voltage is an issue. ::) So more thinking...
McCabe-Thiele (Ted):
The only advantage I can see but would not use is that often a CB issue can be fixed at the roadside.
An electronic ignition system (I have one fitted) is a bit like a light bulb it either works or it's blown, not much in the middle assuming the connections are all good to the unit.
My experience on cars is that they are many times more reliable than CB points as well as staying 'in tune' so as to speak even though cars have a different spark supply arrangements.
The Boyer system is probably the best of both worlds in some ways as it retains the CB points iirc.
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