Generator won't start & now starter will not shut off when it has power

it seems like your ignition switch may not be removing the ground while in the starting position try removing the ground wire from key switch if it turns over and start with key replace switch assy.

It may be possible but parts alone would make it cost prohibitive.

It would require a flywheel, alternator, rectifier, starter, battery, ignition switch, cables, and misc. plus labor.

The most common cause of portable generators failing to produce electricity is from the loss of residual magnetism.

Generators work by moving electrical conductors through a magnetic field. Your generator does not have magnets. The magnetic field is created by taking some of the generator output voltage and converting it to DC and feeding it to a coil to make an electromagnet.

When there is a small amount of magnetism left over from the last time the generator was running, it is called residual magnetism. The little bit of magnetism is enough to produce a small amount of electricity. This small amount of electricity is needed to create an even stronger electric magnet. As the engine turns this magnet moving its electric field, through the stator windings, your generator produces even more power.

When the residual magnetism is lost, the generator will produce no power at start-up. This residual magnetism can be lost naturally from not being used or from the load on your generator being connected when the generator is shut off. It can also happen from running a generator with no load for too long.

Generators need to work and it helps maintain that residual magnetism. When they are running, a load should be connected to it. It helps create an even stronger magnetic field. Before you shut it off, turn off the switch or breaker to disconnect the load. If you shut off a generator with the load connected, it can essentially drain or demagnetize the electromagnet. Try and avoid running out of fuel.

How to fix it:

There are a few methods of restoring a generator residual magnetism

12 Volt Generator Battery Method

Locate the voltage regulator for your generator.
Unplug the two wires that connect to the generator brushes. Normally one is red and the other is black or white.
Connect the black or white to the generator ground battery terminal.
Plug in a light, turn on the generator breaker or switch and start the motor.
Connect the battery +12 volts (red cable) to the red wire on the terminals you removed for three seconds.
Remove your wires and replace the plug. The generator should now be producing power again.

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Try checking your oil sensor. These are common problem areas that will shut your generator down, and prevent it from starting.

Check ground wire on battery to the engine. Starter solenoid may be bad too.

This sounds like a dirty carbureator. Just bad enough that it won't start cold.

The pull cord is like a starter on a car (separate from the motor/engine). If the pull cord will not turn it could be because the motor/engine is seized.

This is really not an option. The engine would need a starter motor and battery and starting key switch. You will probably have to replace the unit with an electric start option.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c