Replacing CEV switch

Moto Rumi technical problems or solutions
hugomez
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Re: Replacing CEV switch

Post by hugomez » Wed May 20, 2020 12:33 pm

Just came back from outside checking what happen in the different positions of the OLD CEV switch.

A: Lights ON and OFF
When the lever is in UP position lights are OFF
When the lever is in DOWN position lights are ON

B: High and Low lights
When the lever is in LEFT position High light is ON
When the lever is in RIGHT position Low light is ON

Tail light works when A is in DOWN position.
Horn works fine in all position.

Pilot light never works (and I don't care)

OLD-switch-CEV---A&B.jpg
OLD-switch-CEV---A&B.jpg (67.1 KiB) Viewed 1234 times
My little Formichino here: http://www.formichino.com/pictures1.html

Lars
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Re: Replacing CEV switch

Post by Lars » Wed May 20, 2020 12:40 pm

Sounds good and makes sense.

hugomez
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Re: Replacing CEV switch

Post by hugomez » Wed May 20, 2020 1:21 pm

Hi,

Keeping all this in mind:

OLD CEV Switch: RIGHT side of the photo

1 Black: -------------- Low light
2 Blue: --------------- High light
3 Brown: ------------- Horn
4 Red: ---------------- +ev
5 Green/Yellow: ------- Tail light


How should be the connections in the NEW CEV Switch? (LEFT side photo). Maybe something like that?:

1 Black ............ Low light
2 Blue .............. High light
3 Red ............... +ev
4 Brown ............ Horn
5 Green/Yellow ... Tail light

Switch-change-02.jpg
Switch-change-02.jpg (101.53 KiB) Viewed 1233 times


As you can see 3 and 4 (Brown and Red) change position from one switch to the other.

Make that sense keeping in mind the information of the wiring diagram from UHJ200 that we saw before in this post?

.
My little Formichino here: http://www.formichino.com/pictures1.html

hugomez
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Re: Replacing CEV switch

Post by hugomez » Wed May 20, 2020 2:12 pm

Well, I've connected the NEW CEV switch as mentioned in the previous reply and the result is that it works as expected.

Position 2: High, Low and Tail lights works fine. Horn also works.
Position 0: Nothing works except the horn
Position 1: Nothing works except the horn


Thank you guys for your continuous help :D
My little Formichino here: http://www.formichino.com/pictures1.html

Lars
Posts: 306
Joined: Fri Nov 02, 2012 3:09 pm
Location: Sweden

Re: Replacing CEV switch

Post by Lars » Wed May 20, 2020 2:15 pm

Yes, that should be correct.

From the photos of older, rusty example of the switch which you opened up, it does look like no. 4 is indeed the horn switch. I would verify with the ohmmeter by pushing the horn button. No. 4 should then read 0 ohms to ground (housing and bracket).

But it looks right, so go ahead and try it! I am pretty sure it will work correctly.

Lars
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Joined: Fri Nov 02, 2012 3:09 pm
Location: Sweden

Re: Replacing CEV switch

Post by Lars » Wed May 20, 2020 2:16 pm

Sorry, you beat me to it. Glad it worked out!

formic
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Re: Replacing CEV switch

Post by formic » Mon May 25, 2020 8:55 am

I really cannot see any advantage in wiring the pilot light.What can it be used for? I have never incorporated it,in fact,I have a drawerful of old wire wound resistor units. Originality you may reply, well the switch on the handlebar looks right doesn't it?
I could even see an argument for taking the power supply to the horn and from there straight to the dip switch, leaving lights on permanently.
Originality goes straight out the window when a brake light is fitted, which is a legal requirement where I live, and as for electronic ignition well!!!!!!
That's got that of my chest.
Keep smiling.
Michael

formic
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Re: Replacing CEV switch

Post by formic » Mon May 25, 2020 9:04 am

Before anyone asks, no I was not forgetting tail light and speedo illumination.

UHJ200
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Re: Replacing CEV switch

Post by UHJ200 » Mon May 25, 2020 10:07 am

"Before anyone asks,no I was not forgeting tail light and speedo illumination."

As Mr. Chad might have said: "Wot no stop light?" :twisted: :lol:

formic
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Re: Replacing CEV switch

Post by formic » Mon May 25, 2020 11:13 am

It had to be Dave.

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