Engine has run 2 hours at low power settings, with occasional short power bursts.
Idle needle needed to close 1/2 turn, H-needle opened one full turn. H-needle correction needed maybe because of the high oil content in the fuel.
on this very small 5C modified 45cc engine canister (14"header) the engine peaked out at 6400 rpm with the 24x10x3 (same load as a 26x10 mejzlik). Prop became quite noisy, 6250 being the noise rpm limit. Thrust estimate is in excess of 40 lbs with this combo.
Cold start without choke after 1 hour rest was on the third flip, indicating a still slightly rich idle. Good throttle response in all settings, with no idle burble above 1/3rd throttle (idle still a tad rich)
Low reliable idle at 1200-1300 rpm
[link=http://prme.nl/video/80-lowidle.MPG]low idle movie[/link]
High idle at 2500 rpm
[link=http://prme.nl/video/80-highidle.MPG]High idle movie[/link]