Hi Rodney,

Yes I fly in Australia.

I believe we are lucky in some way down here. Coolpower actually supply the low viscosity heli oil on it's own in one gallon bottles. Hence I mix my own fuel which works out about a 1/3 of the price if I was to buy the pre-mix.

If I had no choice but to buy pre-mix I wouldnt be flying YS Dingo's. I guess the way my luck has been with engines lately I am going through engine rebuilds faster than fuel.

As for the 1/4 turn richer, Believe me I have tried everything. A Dingo will let you know real quick if your too lean on the pump. While the engine is running all is well but the point of failure always seems to happen when engine is under load. as I mentioned in a previous post I regard myself as a very experienced YS 4 stroke owner. Cam's should not fail just after 15 flights (2 occassions)

Dave Shadel mentioned that there are some engines around with a machining intolerance somewhere on the crank case. I suspect mine is one of them.


Peter