Forklift engines not starting properly is a common problem, and resolving this can be a challenge for many operators. Here are some common steps to solve it for your reference.
First, check that the engine has sufficient fuel and oil. If there is not enough fuel or oil, the engine will not start properly. Make sure to add enough fuel and oil, and check for leaks.
If both fuel and oil are adequate, check that the ignition system is working properly. If there is a problem with the ignition system, such as a damaged spark plug or a faulty ignition coil, the engine will not start. Inspect and replace damaged spark plugs or ignition coils.
If the ignition system is normal, check the cylinder pressure of the engine. If the cylinder pressure is too low, it may be caused by cylinder wear or poor valve sealing. Inspect and replace worn cylinders or valves.
Also, check if the starting circuit of the engine is working properly. If there is a problem with the starting circuit, such as a faulty starter motor or a faulty starter relay, the engine will not start. Inspect and replace damaged starter motors or starter relays.
Finally, if none of the above checks are wrong, it may be that the engine's control unit or other sensors are faulty. In this case, a professional is required to carry out overhauls and repairs.
In conclusion, there can be many reasons why the forklift engine fails to start properly, which need to be checked and resolved on a case-by-case basis. If you're not sure how to deal with this, seek help from a professional.