Ive been using gas engines for a wile now and this is wierd. The needle settings to me are way off, but it runs. the low is 1 1/4 out and the hi is only 1/4 turn
out. Is this normal? this is my first g23 so some imput would be great. Or i could just run it the way it is. Any imput would be nice. Also if I go to far out on the low end it bogs and dies. Rite now it runs ok.
Thanks.

Duayne

Your low needle setting seems about right, but you never mentioned what happens when you open the high needle. You did say that you have been using gas engines for some time so I am assuming that you are using the correct method to tune the carb. If in doubt, start by opening both needles say 1.5 turn and tune the high needle first for max rpm. Then lean the low needle slowly until the engine dies when the throttle is briskly opened from idle to say 3/4 throttle. Then sowly richen the low needle in very small amounts until the engine transitions cleanly then readjust the high needle for max rpm and finally reduce by 200 rpm for flying. Or maybe it's time to give the carb a rebuild.

Karol

Adjust the needles, your not even close..........

When I open the hi needle, it get rich to the point of spudering. Also when I bring the throttle down quick the engine starts to surge for about 10-15 sec. then is stablises. I have tried what you said 1.5 out on both and this is the setting I am left with. Weird! Was just wondering if anyone else had same results. As for the hi I was wrong. it was about 1/2 a turn out from closed. Just a little confused thats all. I checked the carb and cleaned it up and made sure the diaphram was still intacked and all the gaskets were ok. I will try to run it again tomorrow. I also found out that the engine hasnt run in about 10 years. Still though, primed started rite up.

The engine not decelerating when you throttle down quickly is an indicator that the mixture is too lean. Based on the engine's age and the fact that is had been out of service for such a long time and started right up is in itself a testimony to the Zenoah quality, however I think you should consider giving the carb a complete overhaul.

Though it's not rocket science, if you think you are not qualified to do the job any garden power tool or karting repair shop will do. Better still if you have a flying buddy that is so inclined and will help, go for it. Just wondered, what size prop are you using and what rpm is it turning.

Karol