RE: Question about gas to oil mixture........
Is this a new motor?
If so its just a breakin period my Zenoah G26 did the same thing and now it scrams along with the best of them after a gallon of fuel through it but was reliable after just a couple tanks of revving it up in my drive.
I just started flying a gasser and love it I am just about done with nitro's. Oil content is not like nitro content the oil is only for cooling the engine to much and your just gonna ruin the spark plug. Gas engines are definitely different than nitro just let it get hot before you fly otherwise she will sputter at you. Had mine doing it to me today it was 55ยบ this morning and I tried to take right off after starting and go into aerobatics. But after a couple passes at full throttle she never complained again.
Oh and I found out the label on my oil bottle was mislabeled and ran my first gallon at 24:1 now half through my second gallon at 32:1 doesnt seem to run any different to me.