Hello Dave,
I have two problems running my newly bought YS63S.
First of all - after reading yr posts, and getting used to the quite different philosophy - the engine runs great. Prop 12x6 for break in - Morgan 30% Heli fuel. [8D]
But...
- I had to turn the idle-screw all the way in to get the 2200 RPM without spool up tendencies.
- after shut down fuel tends to drop out of the carb. The engine is installed "head-down".
What do I do wrong?[

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Best regards
Sven Kutschera
(Germany)