Hi any ideas why my Land Rover 90 wont start. It turns over but won’t start this has happened twice in two weeks

Have you been feeding the 90 regular could be grumpy.. Might be worth seeing the lads in the Defender section. As for my ten pence Petrol sparks plugs Fuel line Filter or fuel pump. Diesel similar no spark plugs but glow plugs failing or Balast spring is kaput.