Good morning Wiix. Thanks for the suggestion, but it so happens that I already took the spark-arrestor off about 10 years ago. I suppose the muffler could be somewhat blocked in it's place, but the unit still really likes to rev when given its head, and a lean-ish "Hi" screw setting. If I think I've got enough MAPP gas left in the blowtorch, I'll contemplate a de-coking...

Hello AVB across many miles of ocean! My rebuild kit was the abbreviated version, with only the diaphragms and gaskets in it. The original Inlet Needle Lever was therefore carried over, and I consequently never bothered to adjust it. But I like your train of thought regarding the gradual evaporation of the residual fuel in the crankcase from cold. Fits in nicely as at least one piece of the puzzle. I guess I've got nothing to lose by giving the Lever a slight bend upwards to enrich proceedings, but the thing is - I've already got both mix-screws set to slightly leaner-than-factory settings. I'll see if I can get around to it this afternoon. Many Thanks for the suggestions!

Best Wishes to both of you,
Moby Mick.