Hi all, as the old owner of retskcid' s GSA I thought I'd throw some history into the mix... the Battery was new in March 2014. (MotoBatt) and was kept on an Optimate.
I didn't suffer from any stalling issues, but in November the Fuel Pump recall was done as was a 24k service, I rode about 100 miles since that work was done, and didn't notice any stall issues.
so, the fuel pump recall required parts, (Not clear what they replaced) but the works was done by Bahnstormers in Alton. The service was done by Steptoe and a GS911 showed no error codes.
not certain if this info is of any use...... could the work ref the Fuel Pump Recall have any effect?