Well just wanted to let everyone know what I have done. I bought a gallon of 15% fuel. I tried to run the engine first with my home brew fuel with the same results. I then ran the storebought fuel and it ran good. Good idle, good transition and good top end. I then blended 1 part home brew and 1 part store bought fuel. I got a good idle, the transition was a little rich, but it would transition, and I got a great top end of a couple hundred more RPM's than just the store bought fuel.

Also I noticed that I am getting alot more oil from my fuel than the store bought fuel coming from the exhaust. I blended my fuel by weight, to 2 decimal points, using the Specific gravity of the 3 components, with 10% Nitro and 19% castor oil.

Since castor oil doesn't burn off like Synthetic will, is it OK to use a lower oil content when using straight castor?

Thanks

Doug