Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Mine starts off slow, but when it warms up it goes like the clappers.
I've taken the needle valve out to see if there's any mods possible, but can't see any.
The needle valve isn't very finely adjustable for a small flame (at least my example) its either off or on.
I'd like to see if a smaller cooler flame adjusted the running speed.