Greetings,


OK here we go. When the plane is on the ground everything is fine: Idle, midrange, top end etc....Evrything works perfect. However when in the air The engine don't idle down. I have to
lower my trim to maximum to land the plane and wait about 30 sec for the engine to idle down.

The tank, clunk and tubing are all fine .

Am I running to lean?? I am confuse.

Any idea?

Thanks
Serge

To lean on the low needle will cause it not idle down, open it up an 1/16 turn at a time till it burbles midrange then close it back a 1/16, should be perfect. Keep in mind riching the low speed needle also will richen the top end.

Yep what mdavies said, too lean on the low end.

Too lean on the low end will cause it to die when the throttle is opened...[8D]

Okay how about "not rich enough"

I agree: to lean on the low-needle, try the following, open up the low-needle, the high rpm will be to rich, so you have to close that one a bit. Try this with small adjustments. You will find a point where the engine can idle all day long, and still pick up for full power.

Winfried

Thanks all for the input. I will richen the low needle and keep you posted.

Thanks again.

Serge

Did richening the low needle help this?

Greetings,


Problem solved. You were right guys....The low neadle was to lean.

The engine is now running fine.

Thanks again

Serge