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2010 Griso 1200 SE Electrical Gremlins
MarcoSolo:
Bought a 2010 Griso with 8k on the odometer yesterday without riding it as the tires were way low and the clutch needed to be bled - looks gorgeous, Ferrari Red, hardly a scratch anywhere but it has not been treated well. Person I bought it from has a debilitating illness which has prevented him from riding for approximately the last four years, perhaps longer, 12 year old tires with like new tread, fluids not been changed in years. First owner parked it in a damp garage long enough for rust to develop on the valves. When the person I bought it from had it serviced, he learned about the flat lifter problems and had the roller upgrade done (documented at about 6k miles), along with a valve job, and a Beetle flash. It runs but stumbles and dies a couple of times before it warms up fully. I had a 2014 Griso 8v and it was similarly cold blooded but not as bad, but it had the stock rollers and stock ECU mapping. On a short ride on the 2010 to warm the fluids prior to draining them, it ran great. I didn't get on it hard but it pulled like a truck. One other tidbit - the person I bought it from had the clutch go out which required a trailer and a new throw-out bearing and the shop described the gear oil as milky. I drained the engine/trans/final drive a little earlier and all looked clear/normal with only a small amount of filings on the drain plug magnets.
OK, to the electrical problem - turn on the key, the instrument cluster lights up, tach needle does its arc, low fuel light stays on because the fuel level is low, start the engine, the dash goes blank. No turn signals either before or after starting, main headlight bulb is out but the less bright surrounding lights are lit. Tail light and brake light both work.
Does this sound like something you've dealt with and what did you do? I can do the basic maintenance stuff but when it comes to electrical, wisps of smoke start coming out of my ears. I cringe at the idea of bringing it to a dealer with a blank check.
Thanks for any help and feel free to opine on the rest of the bike's shortcomings. I'm only too aware of my own - I wanted it as soon as I saw it, warts and all -what can I say?
moto:
--- Quote from: MarcoSolo on August 10, 2026, 05:10:27 PM ---... OK, to the electrical problem - turn on the key, the instrument cluster lights up, tach needle does its arc, low fuel light stays on because the fuel level is low, start the engine, the dash goes blank. No turn signals either before or after starting, main headlight bulb is out but the less bright surrounding lights are lit. Tail light and brake light both work....
--- End quote ---
This sounds like it might be a bad dash. But first, does the dash look like this before you start the bike?
https://i.ibb.co/N21Jsk5C/IMG-2441.jpg[/img]
If so, good. If the panel on the right is already blank, that's bad. The dash is run by a printed circuit board/computer inside it. The turn signals come directly from that PCB, so the fact that they are not working is a bad sign. These dashes frequently went bad in early years because the PCB was not coated. Once they have gone bad, the repair is expensive. Hundreds of dollars. Maybe someone else has had experience that indicates a loose wire somewhere, but I don't think that's it. Maybe someone else can think of another diagnostic question to ask you, apart from the failure of the turn signals.
guzzisteve:
Pull the dash connector on the back & clean it with contact cleaner or DeOxit is what I use. Make sure battery grounds are cleen & ECU ground up front under ECU.
MarcoSolo:
--- Quote from: moto on August 10, 2026, 08:09:39 PM ---This sounds like it might be a bad dash. But first, does the dash look like this before you start the bike?
https://i.ibb.co/N21Jsk5C/IMG-2441.jpg[/img]
If so, good. If the panel on the right is already blank, that's bad. The dash is run by a printed circuit board/computer inside it. The turn signals come directly from that PCB, so the fact that they are not working is a bad sign. These dashes frequently went bad in early years because the PCB was not coated. Once they have gone bad, the repair is expensive. Hundreds of dollars. Maybe someone else has had experience that indicates a loose wire somewhere, but I don't think that's it. Maybe someone else can think of another diagnostic question to ask you, apart from the failure of the turn signals.
--- End quote ---
The image doesn't come up for me. When the ignition key is turned on before starting and the dash illuminates, the dash looks just like the one I had on my 2014 Griso - when it illuminates - it's intermittent, sometimes it comes up when the key is turned on; sometimes it remains blank. When I started it up at the seller's house, the dash stayed lit - which is puzzling as it keeps going blank when I start the engine. The battery was still hooked to a trickle charger when I started it at the seller's house - I'm going to try that later this morning and see if it has any effect on the dash. The battery is marginal according to the charger. In no case has the main headlight bulb come on and no turn signal activation.
I will do as GuzziSteve suggests and report back.
Thanks for the suggestions.
Vagrant:
Do the cleaning to every relay and fuse at the same time.
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