Hello - I have a VVRC 20 in my Aerobeez 20CC Extra Profile. The plane has 14 flights and the engine has .7 gallons of fuel through it.
When I first installed the VVRC 20 it ran great with a slight midrange burble. I would get a little gas spray off the carb but nothing major (being a profile I can see the carb while the engine runs). Yesterday I did 5 flights and it is really starting to spray excess fuel on the firewall and fuselage. The engine is running rough inverted at mid throttle, and the plane takes a while to fully spool down while at idle for landing. I few times while in the flare I heard the RPM drop.
I tuned the engine again which helped the midrange a little. My high needle is at Peak and the low is set around 7/8 turns open. This results in a perfect transition from sitting at idle for 60 seconds.
I am still getting a lot of excess fuel spraying off the choke butterfly.
Any suggestions?
Thanks!