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High performance two cycle engines, like the Top 80, scavenge the exhaust stream in order to increase power output. If smoke producing fluids are injected into the exhaust stream before the muffler, they will be drawn back into the cylinder and burned along with the ordinary fuel/oil/air mixture. This can cause the engine to overheat as well as prevent proper lubrication of the engine.
If you install a smoke system, be certain that the fluids are injected AFTER the tuned scavenging chamber, not before. It does not matter if the fluid used is two cycle engine oil. A properly installed smoke system in the Top 80 will require the injector placed in the muffler, not in the scavenging system.
Improperly installed smoke systems can ruin the Top 80 engine.