I’m not sure about manuals.

First thing to do is, as Norm says, check for spark.

Leave the fuel tap in the “off” position and the throttle in the “run” position.

Clean around the spark plug using a brush and/or compressed air. Make sure there’s no clippings or grit around the fins that might fall in the plug hole once the spark plug is removed.

Disconnect the high tension lead from the plug. Use a plug spanner and remove the plug.

Check the plug making sure that it’s clean and there is a gap. I usually give mine a brush down with a brass wire brush.

Reconnect the ht lead and, holding the plug against the head, pull the zip starter.

You should see a nice fat blue spark.

Better to do this in a shady spot or in the shed without too much light.

If you have spark then it’s a fuel issue.

Best of luck

Ironbark