I have been flying the MOKI 1.35 for several months. First I did some research on fuel recommendations. You should use fuel with at least 5 percent castor oil and a total oil content of not less than 18 percent (20 percent during break-in). Another thing....the MOKI (MARK) engines are designed to operate on low nitro or no nitro fuel. I am having excellent results running 5 percent nitro, 10 percent castor, 10 percent Klotz synthetic. I get more reliability using a glow plug with an "idle bar". The OS Type F 4-stroke glowplug also works well. One more thing: Don't try to squeeze the last RPM from the engine by running it lean. I set my engine for a rich 2-cycle and leave a nice smoke trail in the sky.
Regards
JC