Brison 2.4 (39cc) same engine, same prop, readjusted carb. Test runs were about a week apart.
Travel time ya know>>>>
ORIGINAL: pe reivers
ORIGINAL: tkg
About 300 rpm between sealevel and 5500 ft ASL
Terry, in which engine, and did you re-tune the engine?
300 rpm in a 150cc is a lot, in the 26cc it is of substantially less importance.