What's the reason for the engine not starting?

[Daisy]

Here are the possible reasons why the engine cannot start: 1. Fuel supply system issues: Clogged low-pressure fuel lines, loose or leaking fuel pipes, air in high-pressure fuel lines, poor technical condition of fuel injectors, and incorrect fuel injection timing can all cause the engine to fail to start. 2. Starting system issues: Power supply failure, poor contact in the electromagnetic switch, poor contact between the starter motor commutator and brushes, and clutch slippage in the starter transmission mechanism can also lead to the engine not starting. 3. Cylinder or air intake issues: Damaged cylinder head gasket causing air leakage, valves not sealing properly leading to air leakage, worn piston cylinder liners causing air leakage, and clogged air filter elements can also prevent the engine from starting normally.