Intermittent stop check relay? - Honda Shadow Forums : Shadow Motorcycle Forum
 
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post #1 of 3 (permalink) Old 01-28-2019, 12:18 AM Thread Starter
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Join Date: Dec 2011
Model: VT700 & NV750
Year: 86
Location: New Zealand
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Intermittent stop check relay?

Hi there,

So a while back I switched my main brake/tail to LED (I think, should check) and also added some extra LED light strips under the number plate.

This has, of course, led to the warning light on the display which I haven't worried much about. I check my lights quite often and the odds of all of them failing are pretty low.


Of late the warning light has been flashing, sometimes staying off, but there are no visible changes to the lights. For a while I thought it was because I'd earthed the system to the plate itself which measured fine, but only later did I find it was on a broken rubber grommet - my thinking was that at times the plate would move and break contact, so I ran an earth wire to another nearby bolt under the mudguard.

Anyway, it keeps on flashing for a bit, usually just after I start the bike and for the first few hundred metres before it settles, but sometimes it can keep flashing and flickering for some distance, even more than a 1/2 an hour trip.

It also seems to be much affected by rougher roads vs smooth roads, where there may be no flickering at all. It does flash in time with bumps.

Could this be an internal fault to the S/C relay? Most of the time it's not even remotely an issue but sometimes it gets distracting, especially on the more 'interesting' roads that are abundantly supplied in this area.

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post #2 of 3 (permalink) Old 01-28-2019, 12:32 AM
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Model: Vt750
Year: 1983
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@KiwiRider , the best way to earth it is to get a 6 foot rod driven into the earth with a stout wire to the frame.

Just joking with you and your "earthing".

I would just ground it to the frame. lol.


Actually since you have LED lights and the sensor unit is acting up why not just unplug it and see if the lights still light. Or jumper around it for the tail and bake lights, jump the wires for those 2 bulb circuits.

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Only a biker knows why a dog sticks his head out of a car window.
1983 750 Shadow
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Last edited by swifty2014; 01-28-2019 at 12:50 AM. Reason: spelling
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post #3 of 3 (permalink) Old 01-29-2019, 07:04 PM Thread Starter
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Join Date: Dec 2011
Model: VT700 & NV750
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Location: New Zealand
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Quote:
Originally Posted by swifty2014 View Post
@KiwiRider , the best way to earth it is to get a 6 foot rod driven into the earth with a stout wire to the frame.
I may yet end up doing that. I mean if I go out on a more interesting road and get distracted at the wrong time. May be a very stout rod, like an armco barrier...

Quote:
Actually since you have LED lights and the sensor unit is acting up why not just unplug it and see if the lights still light. Or jumper around it for the tail and bake lights, jump the wires for those 2 bulb circuits.
I could try that.

With your diagram, does it matter that my bike didn't come with the optional toaster oven?

We're in the middle of a 'severe heat wave' at the moment, so for the time being I am not working on the bike.

Thankfully in these parts "severe heat wave" is 3 days every decade, and our "record breaking temperatures" are higher than those in living memory - but 'living memory in these parts means most people have forgotten the much higher temps we had 10-15 years back (or they do 'highest temperatures on record for Xtown, but Xtown was only founded in 1982..)

Yeah, also trying to stare Claire of forums atm, my brain over-warms easily (surprisingly given the massive ear gap around it) and I'm even more sloped to say weird/stupid stuff
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