I have X-Air S fitted with Jab 22A 1261 which I think is on its second life. reconditioned at Jab after service in France. solid lifter. Total trouble free hours 294. Richer jets fitted at 252 hours as per JSB 018-2. Still easy start and smooth running. No sure but think I have 285 needle and 225 main. jab invoice has this as Item No, 4A172AON.