Your Idle is too lean! If the motor is not dropping back into an idle in the air.

Richen the pump...Say 1/8-1/4 turn...Rich is IN on the pump...This is also a lean condition when the idle changes a bunch for the flight.

When the motor is cold from a start up it will idle what seems to be too low....it might even die on the ground if you have it that low. You need to warm it up before setting your idle trim. The DZ is dumping cold raw fuel in the head....if its cold meaning not warmed up to operating temp it will run like it is rich on the idle. I would say to avoid this idle condition and find out where you want it to be set run the motor at full power for about 30-40 secs on the ground...then set your trim position idle. This will make it more cosistent.


What I do it I have it set so that when it comes time to land I lower my trim 3 clicks. On take off the motor may be idling very very low and seem like it might die. It has not been a problem... I takes a little time to get the setup properly and figured out....I don't run it for a long time on the ground now before T.O because I know the mixture and the idle trim position is correct. And I just have a slightly higher idle in the air....This works very well.

Troy Newman