Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

One of the down sides of heavy flywheels on a tiny engine is not enough power on the "Hit" stroke to really get them moving...my engine has good compression I feel and I am running Zippo fuel...I have heard of adding a little Acetone in the Zippo fuel to encourage fuel to vaporize...Some spoke of only a few drops of Acetone...just curious how much would be to much...and what is the result of to much Acetone? I don't want to damage my cute little engine. It also occurred to me that I may want to dose my fuel Right before use....we have Acetone dispensers at work used to clean metal, they hold about a quart and if you fill one today and don't use it for 2 or 3 days it will be 3/4 empty from evaporation loss!...even Zippo lighters need to be filled every 3-4 days as Zippo fuel evaporates very well to....I am going to run out for some more engine tuning supply and thinking of picking up some of the small mason canning jars..they make small ones for jelly that may work to store my pre-mix fuel, I can break the seal and quickly grab a syringe full (plenty to play) of fuel and quickly recap mason jar in hopes my addatives stick around....just wondering how others are handling this?