Gentlemen--I read many pages of discussion regarding Moki engines but saw nothing much related to my problem. I bought a new Moki 1.35 3 years afo for H9 CAP232. Broke it in carefully like directions and MAN MOKI article suggested. All seemed to be OK. Put it in the plane and it seemed to work OK for about 5 flights. Then it went haywire. Now, it will start fairly easily, idle well then when throttle is advanced it will suddenly quit at about 3/4 throttle. If the glo igniter is left connected most times it won't quit. But, when it was working right originally you didn't need to keep glo igniter connected. I tried new plugs of various types--F, 8,1L,A3. Originally the F worked great. I installed new gas tank and plumbing. No leaks in plumbing/tank system. MOKI owners at field all took a shot at analyzing and fixing the problem--fuel, carb adjustments, plugs but no one could fix the problem. The plane has been a hangar queen for 6 months. I give up. Any ideas on how to fix the problem or at least set up a troubleshooting analysis scheme. I suspect the problem is in the carburetor but don't know what to do. With only 5 flights I hate to send it back to MOKI to add a big buck repair bill to a big buck purchase price. By the way, plane was not crashed and engine was never disassembled. Probably has about 4 or 5 hours running time--mostly on the bench or plane on the ground.

Thank you.

Frank

Frank, a couple of years ago I bought a Moki .61 Long Stroke, it did exactly what you describe but not all the time. I found that the banjo fitting that you attach the fuel line to on the carb was leaking air in around the clip that holds the high speed needle steady, the holes in both the clip and the banjo fitting are a larger diameter than the stud they are mounted on. I cut both ends off of a SuperTigre muffler gasket and used them as gaskets between the carb body and the banjo fitting and the clip and the banjo fitting. Problem solved.