As stated in a previous post. I have a Ryobi 31cc converted to EI with a CH ignitions prop adapter and their magnetic sensor. I'm using an S/S ignition system which is almost new. I have a Walbro WT-324 carb. on it. I'm running a Zinger Pro 16x8 prop but no muffler on the engine yet. I have the timing around 30 deg. BTDC. I replaced the throttle shaft so I could add a throttle arm on it. BTW, Ralph Cunningham sent me the replacement throttle. Great guy!! Anyway, the engine starts great. Choke it till it fires, choke off, one or two flips and it's running. Now here is the problem(s). The engine will idle but I have the idle stop screw all the way out and it still idles at about 2300 RPM. I can add throttle quickly and it will take throttle great. I have the top end adjusted pretty close and the bottom end pretty good I think. When you let it come to idle quickly, it will quit. One or two flips and it's running again and idling as before. I have the LS needle out about 2 1/4 turns. Any leaner and it won't transition quickly to full throttle. I have the spark plug gap at .020" which is brand new.
I did have the butterfly out when I changed the throttle shaft out but I think it is the right way. I have compared it to other carbs and it moves the right direction and is in with correct side out. I do have a little light showing around the sides of the butterfly but I have tried to adjust it but can't seem to get it touch all the way around. The butterfly does touch at the top and bottom. I have looked at the carb end where the butterfly is and there is one tiny hole exposed like the other carbs I looked at. As you open the butterfly, the is another tiny hole that then becomes exposed. I believe these are for the low speed circuit because carb cleaner came out of these holes when I sprayed carb cleaner in the hole where the LS needle is.
Any Ryobi guru's have any ideas?
Thanks