SOHC.co.uk Forums > CB500/550
CB550 K3 custom project
thomaspigeon:
Hahaha thanks Julie!
Till the next episode... :D
robvangulik:
--- Quote from: Nurse Julie on September 10, 2020, 01:26:59 PM ---I'm just trying to get my head round your photos, something doesn't look right 🤔🤔🤔 I will find a float in a bit and have a look.
Also, if you have fitted all new brass ware, unless they are genuine Honda, there is no guarantee the float vales are shutting fully in the seat.
--- End quote ---
Maybe that the "hinge " is on the bottom instead of the topside?
Aand there was another page my PC only showed after posting. Sorry.
paulbaker1954:
--- Quote from: thomaspigeon on September 10, 2020, 08:39:23 PM ---Alright after a day of fight. I can say it, no more overflow!
I had to raise some float to 23mm. I don’t know if some spring got more resistance or anything else but it works...
I’ve put everything back on try the spark and.... no spark, I’ve seen a live wire grounding from the electronic ignition... it might be blown inside now.
Reading on the coils after the plug caps is 5000ohms, weird. I have to investigate this now :-[ :-[ :-[
--- End quote ---
What brand of electronic ignition is it?
thomaspigeon:
Hey I don’t really know the name of the electronic ignition,
I bought it through David Silver. It’s a Japanese make : https://www.cmsnl.com/honda-cb750k4-four-1974-usa_model482/ignition-assyelectronic-kokusan_03020300505/#.X1-ToiV4WEc
It looks like it’s fried, I plugged a 12V light on the yellow and blue leads and nothing. I probably made a short with that live wire :-\
AshimotoK0:
--- Quote from: thomaspigeon on September 14, 2020, 05:04:12 PM ---Hey I don’t really know the name of the electronic ignition,
I bought it through David Silver. It’s a Japanese make : https://www.cmsnl.com/honda-cb750k4-four-1974-usa_model482/ignition-assyelectronic-kokusan_03020300505/#.X1-ToiV4WEc
It looks like it’s fried, I plugged a 12V light on the yellow and blue leads and nothing. I probably made a short with that live wire :-\
--- End quote ---
I would have serious concerns about having such delicate and unpotted, not even conformally coated, electronics (on initial viewing from web photo) in the area normally occupied by the points plate. Even in the mid 1970's Boyer Bransden were savvy enough to have a remotely mounted and full potted electronics module with just inductors on the points 'plate' PCB.
What do other electronics guys on here think? The use of electrolyic capacitors in that location (which gets quite hot ... is also very questionable IMHO)
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