Engine overspeed light blinking

Check the mag pickup sensor on the flywheel for dirt chips of metal.

Code 32 is a low cranking speed sense. You didn't mention a Spec # which would help. You say batteries are ok, but the generator is not getting enough cranking amps or voltage to maintain the control properly. Check, battery voltage, wiring, any in line isolation solenoids, check generator solenoid, also make sure there is no mechanical binding on the generator, a good way to do that is remove the spark plugs DISCONNECT THE BATTERY to prevent starting, underneath where the air intake is under the alternator is a plastic plug, remove that and you can put a socket I believe 3/4" up onto the alternator shaft and rotate the engine, if it tuns freely there is no binding, if you feel it is hard to move, check the drive train, belts, pulleys underneath (A lot of work, best to take to a dealer if it is mechanically bound)

hi
remove the spark plugs ( if this is a petrol engine ) and crank the engine antill the oil from the plug hole stops coming out make sure the plugs are totally dry from oil before refitting . if diesel engine remove injectors crank engine antill dry from oil

Replace over speed switch or throttle control.

To be sure that the oil level switch is good or not, try the following:

• Find the switch terminals;
• First disconnect one wire (if more than one) and try to crank the motor;
• If the previous attempt was not successful, connect the wires together (if two wires) or the wire to ground (if one wire). Try cranking again.

If one attempt was successful, then the sensor is bad or wrong connected.
 If no attempt was successful, then the sensor may be good. Than check the fuel supply system.

If you're sure it isn't a fuel issue, also check these things:

The engine oil - it could be low on oil and shutting down on low oil pressure

If water cooled, check the coolant level. Same thing - the engine may have a low coolant sensor.

Make sure the unit isn't overloaded.

If it has overspeed control check to see if the engine is running unusually fast when it does run.

I have a generator that did the same thing. It would start and then stop within a few seconds. The more expensive generators have an oil level safety switch to prevent the engine from burning up. There is usually a wire connecting to the switch on the outside of the engine near the oil fill hole. Remove this wire and try to start the generator. If it runs without a problem then it is the switch. You need to remove the switch and take it apart carefully and clean it. There is a small float inside the assembly. When the oil runs low the float allows the switch to short to ground which kills the spark to the spark plug. Hope that helps.

Bob Janelli

I’m happy to help further over the phone at https://www.6ya.com/expert/bob_62dfa2f81bb55288

Check the battery voltage while cranking the engine if it drops below 9 VDC then you have a bad battery.

Make sure that the throttle linkage is all there and not damaged/misadjusted, then get a manometer and check your inlet gas pressure. Gas pressure should be 8 inches of water column and stay there running or not.

Carl

Did you remember to set the overspeed shutdown threshold on the control board?