making smoke

(as used on glo mufflers) which can be screwed trhough a drilled and tapped hole into the body of the "homey" muffler. You'll want to inject the fluid as close to the exhaust port of the engine where the gasses are the hottest. Since gas engine exhaust is much hotter than glo you don't need to pre heat the fluid at all. What's also important is to regulate the flow of smoke oil so that you don't have too much. A pinch device on the flex tubing works well. Mitch

While that is true, a coil inside the expansion chamber would preheat the oil and give you longer lasting better smoke. Well at least that is the way the Slimline guys do it. Stainless 1/8 id if I recall correctly and you can get fancy by crimping the end to cause the exiting oil to come out in a spray. Or so someone else doing something different with a different engine told me. I am getting ready to do smoke and need a pump. My DH motor burned up and I never got my TME to work.

Yes! Alcohol burns cooler so the exhaust is not hot enough unless you do a good job of preheating your smoke oil.