SOHC.co.uk Forums > CB500/550
Trouble with bike
deltarider:
As far as that electronic ignition, I've seen it in the market under different names. Can't remember if this is the one that you had to be aware of an impeded advancer due to bolts that protruded too far at the back side of the plate or the rotor. It woudn't hurt to check the advancer works freely with a strobe timing light.
What I do know is, that on ordering this EI, you had to specify whether the unit was to be used in combination with standard or 3 Ohm coils. For the latter they had a different rotor in their program to limit the dwell somewhat.
McCabe-Thiele (Ted):
--- Quote from: beardylondon on February 24, 2025, 12:17:24 PM ---It not the condensers as I have electronic ignition, I didn't know that!
I guess this could have failed?
--- End quote ---
That looks like a pretty new electronic ignition unit, it's the same brand that DS sells Longfong Kukusan if I am reading it correctly.
Pretty easy to check for spark, it ought to be big & blue.
Johnny4428:
I have this EI on my 550k3 with standard coils. No problem with it bought from DS. When it was fitted and set up it was set with the advancer held on full advance.
beardylondon:
Correct, thats what it says on it, dated 2018
--- Quote from: McCabe-Thiele (Ted) on February 24, 2025, 05:22:28 PM ---
--- Quote from: beardylondon on February 24, 2025, 12:17:24 PM ---It not the condensers as I have electronic ignition, I didn't know that!
I guess this could have failed?
--- End quote ---
That looks like a pretty new electronic ignition unit, it's the same brand that DS sells Longfong Kukusan if I am reading it correctly.
Pretty easy to check for spark, it ought to be big & blue.
--- End quote ---
McCabe-Thiele (Ted):
My understanding is that the two different versions of the DS unit were to replace the two different points plates & advancer unit. One is for Tec the other for Nippon Denso that has a different sized lobe mount on the advancer.
The DS electronic ignition unit has a fair bit of circuitry on that board. By comparison my Dyna electronic unit has just a pair of sensors with no additional circuit board.
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