Did a little fuel consumption test this morning on the TT36. I put in 4 ounces of fuel in the test stand tank. When the engine started, I ran it full throttle for one minute, then idled it down to about 3000rpm or a bit under and let it run. It finally died on its own after 6.44 minutes. It had used only 1 1/2 ounces of fuel. I guess, much to my surprise, the 2 ounce tank will suffice.
Lee TGD