Hi Guzzi Cat and all, yes I had a similar issue with the oil light coming on at low revs and traffic lights. Oil level is okay so ordered a new sensor. Yes, Ive had the tank off before and yes one of the bolts was stripped and if you replace that bolt and put that in first, it'll strip the other as the holes don't line up properly. 30 sec job takes much care and replacement bolts and wiggling for an hour, yes PITA!
quick release fuel pipe, my arse! Ive had the tank off before but the photos and the tip about removing the fuel pump connector and turning over (no start) are much appreciated and interesting by way of removing fuel pressure. Didn't work tho and was impossible to remove despite gentle wiggling until the red 90 deg fuel pump spigot broke....... Grrrr. so now I have two issues!
1. Broken pipe - fortunately Gutsibits in the UK sell a replacement fuel pipe spigot £27 so I'm now waiting for that. Question? has anyone broken and replaced this? I have removed the fuel pump plate under the tank and removed a grub screw which seems to be holding the spigot in place but it still won't shift, any tips? I will of course be applying some silicon spray to facilitate easier removal next time.
2. Oil pressure sensor - the spade connector was very loose on the unusual pillar type brass connector which may have been the fault but I'm going to install the new sensor sources from Gutsibits. However, no leaks but no crush washer, aluminium or copper. Also replacement part discontinued so new item sent but thread is a different size and now needs an adaptor awaiting delivery Grrrr. Q? the sensor has a single wire and before I removed anything I checked the dash and all lights illuminate during pre start test, but then doesn't now illuminate as expected until start/oil pressure builds and disconnects earth. Now all removed, light is random, with or without the purple wire connected to earth or not. Is this just random interpretation by the dash? wiring is not damaged, I'd hate to think that this is just random electrical issues and not oil pressure at all but on the other hand I don't want to be thrown off of a seized bike. I'v had a 1200 sport 8V before and I never had any of these issues. Frustrating as my Ducati never goes wrong and is ballistic! ....... so why do I still love the GRiSO?