kingairflight

My Feedback: (2)

need some help with a 3w75. first gas engine of this size. i broke it in and flew the airplane once and engine ran awsome. sat for a few months this winter and now when i run the motor, it runs awsome until i put the plane in a climb and it slowly dies. i've started at factory settings with the L and H. when i start richening the H it gets better but then gets to a point where it doesn't help and and i can screw the H almost clear out. from idle to full has great response and will run all day long level. i did rip the landing gear off and the carb got a little dirt on the bottom of it but didn't look bad. don't have much experience with this type of carb. ANY HELP PLEASE. thanks.

travis

Antique

My Feedback: (4)

Check the filter screen and diaphragms in the carb...They get stiff after a while, doesn't take much...

canavanbob

My Feedback: (20)

It may be that the fuel you were using had a high oil content and during the winter the gas evaporated and left the oil to congeal and clog the high needle port. Remove the high needle and use a syringe to force gas thru the port and try again.
Bob

kingairflight

My Feedback: (2)

thanks ill give it a try and let you know