Author Topic: oil light glows with ignition off  (Read 6403 times)

John_B

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oil light glows with ignition off
« on: April 15, 2015, 04:57:32 AM »
I am thinking of bidding on a Breva 750 currently on UK Ebay (no point in linking, if you look within about 4 days of this posting it is easy to find). The description says "the LED oil light glows dimly with ignition off (a well known Guzzi issue with the pcb in the instrument console) – this is not a problem if the bike is used – otherwise better to keep on an optimate or similar device."

Has anyone heard of this issue, or know what it costs to fix? (I did google before posting, and have not found it yet.) Is it a sign the electronics are likely to get worse, and need full replacement? Or is there a realistic option of fitting a battery switch, and living with the issue long-term? I have nowhere to store the bike where I can fit a trickle charger.

Thanks for reading  :)
« Last Edit: April 15, 2015, 05:02:18 AM by John_B »

Bill Hagan

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Re: oil light glows with ignition off
« Reply #1 on: April 15, 2015, 10:52:04 AM »
Bump.

Naturally, I haven't a clue, but surely someone here does.

Bill

Vasco DG

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Re: oil light glows with ignition off
« Reply #2 on: April 15, 2015, 11:51:30 AM »
It's such a well known problem that nobody's ever heard of it. I certainly haven't. Sounds like a diode problem in the dash.

Pete

Offline Kiwi_Roy

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Re: oil light glows with ignition off
« Reply #3 on: April 15, 2015, 11:54:10 AM »
Does it have a light?
It shows the switch going into a dash, I would have thought it would be an LCD display.

I imagine this information would put off a lot of prospective buyers, it might be a chance to pick up a bargain

Oopps Pete beat me to it
I should add I know zilch about modern Guzzis
« Last Edit: April 15, 2015, 11:57:21 AM by Kiwi_Roy »
17 V7III Special
76 Convert

Moto Guzzi - making electricians out of riders since 1921

Vasco DG

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Re: oil light glows with ignition off
« Reply #4 on: April 15, 2015, 12:08:12 PM »
No LCD. Oil light and other idiot lights are all LED's. The early Baby Brevas had an issue with the EFI light being illuminated when the engine was running due to the CPS cable running too close to the LH coil but I've never heard of an oil light problem???

Pete

Offline Kiwi_Roy

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Re: oil light glows with ignition off
« Reply #5 on: April 15, 2015, 12:22:13 PM »
Pete,
        I think I would be safe in saying an oil light problem doesn't mean an oil pressure problem
On my LED equipped bikes the oil light glows in wet weather with the leakage across switch.
I don't know if the light is wired directly to the switch but I suspect so, the puzzling part it does so with the key off.

This small fault wouldn't put me off


On this topic, if anyone has an old dash they can spare I wouldn't mind delving into one, I may be able to shed some light into how they operate but no promises. Send me a PM
« Last Edit: April 15, 2015, 12:56:08 PM by Kiwi_Roy »
17 V7III Special
76 Convert

Moto Guzzi - making electricians out of riders since 1921

Vasco DG

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Re: oil light glows with ignition off
« Reply #6 on: April 15, 2015, 04:04:10 PM »
Really stupid question , so apologies before hand . Do the later SBs have a low oil sensor ?

  Dusty

No.

Oh, Roy, I've got one if you want a play. It's a warranty take off. Can't even remember what it's issue was it was so long ago.

Pete

Offline Kiwi_Roy

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Re: oil light glows with ignition off
« Reply #7 on: April 15, 2015, 06:00:05 PM »
Thanks Pete

PM Sent
17 V7III Special
76 Convert

Moto Guzzi - making electricians out of riders since 1921

Fuzzy

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Re: oil light glows with ignition off
« Reply #8 on: May 17, 2015, 03:36:45 PM »
I just bought my 750 Breva a month ago, and this morning found my oil light glowing dimly with the ignition off. When I pushed on the dash a little it went off, but did not stay off. After taking the back of the dash off, it remained a mystery. It almost has to be a wiring issue, but it doesn't look like there is an easy way to diagnose.
I'm hoping if I ignore it, it will just go away.
Did you buy this bike? Still having the problem? Find a fix?
How long will this take to drain the battery?
Thanks

Offline rodekyll

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Re: oil light glows with ignition off
« Reply #9 on: May 17, 2015, 07:43:19 PM »
Welcome to the forum, Fuzzy.  You'll do better if you make this a new topic.  Folks aren't expecting to see this here.  Personally I know nothing about the 750 breva. 

Offline Muzz

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Re: oil light glows with ignition off
« Reply #10 on: May 18, 2015, 02:20:36 AM »
Never seen any sign of it in the 11 years I have owned the Breva.

In fact,  this would be the first time I have ever heard of it.

I hear Ratguzzi may have a Breva dash going........
Muzz. Cristchurch, New Zealand
03 Breva

Life is just a bowl of Allbran
Ya wake up in the morning and it's there

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