SOHC.co.uk Forums > Project Board
New (to me!) '77 CB400F - US model
mattsz:
--- Quote from: Lobo on September 16, 2019, 01:23:29 AM ---... whilst I don’t have the US wiring diagram mattsz, I’m not sure how connecting the Park & HL will bypass the starter button ‘protection’ - ie I’d have thought the ‘protection’ will continue to work as designed?
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Perhaps "protection" wasn't the best choice of words - substitute "function?" USA model headlights are always on when the ignition key is on - except when you push the starter button - power to the headlight is then temporarily disconnected until the starter button is released. So the circuit's "function" is to remove the electrical load of the headlight while the starter is used. Whether that's a "protection" could be debated, I suppose. Whatever you call it, with that jumper shorting the two wires in question, the headlight would stay on when the starter button is pressed, which is not the intended design. I think... ;)
BTW, if you're at all interested, I've added my version of the USA-spec wiring diagram to the same post that has the UK-spec diagram... link to that thread: http://www.sohc.co.uk/index.php/topic,17969.msg155929.html#msg155929
--- Quote ---My guess at this bodge is that there’s been a break in the Black/Red feed (to the fuse holder) ... and so the PO has jumped the two together.
Has the PO therefore solved the problem and (lazily) restored the lighting to normal road light functioning? (at the expense of proper Park light function)
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Thinking about it, I'm liking this idea - you may or may not recall that my starter switch was broken, and it wouldn't operate the starter properly (pic of the switch in this post: http://www.sohc.co.uk/index.php/topic,17599.msg153989.html#msg153989). Full headlight current runs through that switch - the "break in the Black/Red feed (to the fuse holder)" you mentioned could very well have been that broken switch - and I wouldn't have realized it because the headlight was getting power through that bodge...
mattsz:
Sorry for my shameless cross post - I posted a question of sorts in the tricks and tips section, which has had 80+ views to date but no replies. Anyone care to take a look and comment?
http://www.sohc.co.uk/index.php/topic,20253.msg179895.html#msg179895
Nurse Julie:
--- Quote from: mattsz on October 09, 2019, 01:13:20 PM ---Sorry for my shameless cross post - I posted a question of sorts in the tricks and tips section, which has had 80+ views to date but no replies. Anyone care to take a look and comment?
http://www.sohc.co.uk/index.php/topic,20253.msg179895.html#msg179895
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A soda blaster has many uses, including the parts you are talking about. No media is left, so no issues with little bits if glass or sand being left but, it is a slow process blasting anything with soda. The outcome and time spent is entirely dependant in the output of the compressor you are using. It needs to be a high CFM rating to do an effective job.
Lobo:
...yea, I’ve read this ‘tip’ before Oddjob, noting that jumper wire was not in fact needed; you simply took two fuses out and rammed one back into in the ‘dead space’ between the holders. (and like you I can’t remember which two - but it wouldn’t be hard to work out)
mattsz:
--- Quote from: Nurse Julie on October 09, 2019, 03:17:39 PM ---
--- Quote from: mattsz on October 09, 2019, 01:13:20 PM ---Sorry for my shameless cross post - I posted a question of sorts in the tricks and tips section, which has had 80+ views to date but no replies. Anyone care to take a look and comment?
http://www.sohc.co.uk/index.php/topic,20253.msg179895.html#msg179895
--- End quote ---
A soda blaster has many uses, including the parts you are talking about. No media is left, so no issues with little bits if glass or sand being left but, it is a slow process blasting anything with soda. The outcome and time spent is entirely dependant in the output of the compressor you are using. It needs to be a high CFM rating to do an effective job.
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Thanks Julie! Where does the baking soda go? Or, do you have to wash the parts and the soda dissolves? I guess the junk you're blasting off has gotta be clean off somehow...
The specs on that tool are, ahh... interesting. The website lists the "average air consumption as 7 cubic feet/min @ 90psi... which is also the maximum pressure...
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