I fixed some wiring a couple of weeks ago and when i tried to start him the Winchester was having none of it, so I waited and tried again the next day, he roared ( i say roared, more like coughed like he had the consumption

tried him yesterday night and nothing, like before, now there's no clicking of the starter motor or anything, so i'm wondering if it's the cold and damp thats got to him and if i just leave it and try again about midday or so will he fire up?
any help with my conundrum would be greatly appreciated
thanks for your time, pip pip