Originally Posted by Adam12
Saw now the picture of the spark plug wasn't terribly sharp. Here's another one:

[Linked Image]

I think Luddite may be onto something. Suggest pulling another plug for comparison. Something doesn't look right there with number 1. Could unburnt fuel have caused the mess on the threads thinking

Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone