Removing the carbs cos of persistent misfiring at small throttle openings that no bike shop found problem with, I found 3 things. 1), that the pilot screw on one carb had fallen out onto the crankcase and 2) that some carb pilots were 4 turns out, others 2-2.5 and that 3) some jets might be blocked. Miracle it was running,really.Now I don't know what these jets are called. , I don't think this is the one with the needle. I don't even think it's meant to have a hole in it but the guy down the bike shop's told me to unblock it with fine wire. I've tried, it's impossible. Another carb's got the same "problem, haven't looked at the other 2 yet. Can someone tell me if there is really meant to be a hole here? It looks to me like there never was one, only a brass conical bowl-shape. If both are blocked I can't see how the engine could have run as well as it did.
