I have a zenoah G26 that for some reason i cant make stay idleing. The engine will run great on the ground, runs great anything above an idle. But almost every time you go from wide open to idle in the air only the engine dies or either goes what sounds like extremly rich ( it will be real slugish and then pick up ). And also when you go to get the plane when it dead sticks there is fuel coming out of the vent tube.

Here is what i have done to try to fix the problem. Took the tank out and check to make sure vent was correct. No problem there. Put a new diaphram in on the needle and seat side of the carb. That was no help. Welded a copper tube to the diaphram cover to make sure there was no change in barametric pressure. Still no help. I have tried every size prop from a 16x8 to 18x6 wich the engine is suppost to turn all of them.

The engine is new and has about one gallon of gas threw it. It is mounted to a Ultra stick. If anyone can offer any help on this it would be greatly appreciated. I am tired of trying to adjust this thing and fiddling with it. Oh and also i have started over with needle adjustments a few times ( started back at factory specs) and turned the needles very little at a time. PLease help !!!!



Chad