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Location?
Just a thought in the interest of keeping it simple for starters.Have you removed the gas cap when you had trouble with it? It might be possible that your tank is not venting properly and once the vacuum exceeds the ability of the fuel pump, it stalls out. If you take off the cap and you get an inrush of air, the venting system may not be working properly. The give away will be that the bike starts right back up and idles fine.At the Km you posted, I would be very surprised if some filter was plugged, such as the fuel filter. It is possible but unlikely. As I said, just a thought. But it only takes a moment to try and cost nothing. It could very well be as Steve suggests though. If you are able to contact the person you got the bike from, it may be worth asking more questions about the update that you mentioned.John Henry
Well, welcome to WildGuzzi. I would say yes, if the new map shut off the O2 sensors and the owner did not trim the idle mixture correctly. This could make it stall at a light. OR if a factory map update was done and the tech didn't do a reset of TPS or whatever it may do same thing.You need to find out exactly what map and who made it. Most dealers don't do mapping unless it's stock map.
Ok i just talked with the tech guy, he told me the he installed the latest mapping last year on that one and there was no new updates this year. I told him about O2 sensor and mixture trim, he answered me that plenty of bikes are running with this mapping and that's not the issue... he doens't want to do any trimming telling me that I can damage some engine components. So now he want to look at the bike to look at spark plugs, gas filter many things.. i have the feeling that he is not sure of what to look at...
Check the oil level and possible oil contamination of the air filter and MAP sensor and the valve clearances and report back.Pete