Off-idle response had never been great, but after sitting for a few months, it had worsened a good deal. It started fine, was fine at big throttle, but just died when suddenly asked to give more. This became rather treacherous at an uphill red light ! I am going to order a jet kit from bing, and perhaps take a look at the floats as well. As usual, it is great once underway at steady throttle, and it was a glorious if cold day to be roaming the countryside amongst the winter corn fields.