Detonation is rare happened in model aircraft engines. If engine detonation happening, it will be observed that the engine speed and power decrease, abnormal shaking, greater noise. If this situation occurs, you can:
1. Reduce ignition advance angle (Not necessary for glow-type engine);
2. Use gasoline with a grade (octane number) that matches the regulations;
3. Remove carbon deposits from the combustion chamber;
4. Reduce compression ratio.
