How to change xr 80 timing chain?

To change the timing chain on a Honda XR80, start by removing the side cover and the necessary components to access the timing chain, including the camshaft and any associated gears. Carefully mark the original timing positions to ensure proper alignment during reassembly. Remove the old timing chain and replace it with a new one, ensuring it is correctly tensioned. Finally, reassemble the engine components, following the marks you made earlier, and double-check all connections before starting the engine.