Here is a 1958 Norton ES2 500cc single. I recently purchased it after it had been sitting in a museum for decades. The gas was stale, the petcock plugged, and the carb need help. After some help from my friends they got it started but with great difficulty and poor running. I then tackled the carb and petcock and after hours of fiddling with the carb and dozens of warm up kicks it started on the first kick and runs great! It also started again with one kick! Love these old Brit Singles.