If it were going to sieze or show signs of wear and performance drop, i guess it would have shown it by now.

Ive run about 4 liters of 8% oil mix thru the engine doing hard vertical 60-100% throttle pattern manuevers with the setup (picture above). And its still incredibly oily inside and a little out. I wipe the oil after every 5 flights with a single small paper towel.. and most of what I wipe comes out of the carb venturi.

It would be like heaven if I could get my hands on those locking type plug caps for these small spark plugs. I use the ones I bought from Just Engines UK for £5.. not that pricey!

So CH ignitions have these locking plug caps in stock? I thought of buying a locking type glow driver and cannibalize it to manufacture a locking type plug cap, but seems like a lot of work.

This way or the other I need a locking plug cap for reliable operation and it would suit me better if I didnt mod the original head.