Honda generator stalls when put under a load - Pramac S3100 Contractor Generator With Honda GX160 Engine 2860W 3100W

Voltage regulator, carbon buildup in the cylinders, the carburetor may need overhauling, engine governor may have a stretched spring, Spark plug may need replacing, Timing may be off, air filter may need changing, and lastly, your load may exceed the ability of the generator.Checking this list will uncover the loss of power

if your question is that my Honda generator wont idle up when I connect a load (tool) and it stalls then . first see if unit will run on constant setting (switch on front) if nothing or still barely runs or stalls , then your problem is carb or fuel filter (inside tank) one or both is most likely dirty and needs replaced/cleaned

does it surge under load ? or without load, if without load it could need the injector cleaning if under load it could be the governor at fault

a short or a very bad bearing seizing up or throwing the axle out of alignment under load could do that

As the load goes up on any gas engine, the governor is supposed to open the carburater as needed to keep the engine speed up. It is normally a vertical lever with a spring attaching it to the carburater throttle linkage. Look it over and you will see it. Is it working?

yes this load sensor module has a coil that is wrapped on a single line of stator output.this board may utilize a 12 volt source from alternator

Chk air pipes & filer, and plug/s, are clean.cheers

sounds like the carberator needs cleaning and the linkage that makes it open up under load. it works off the flywheel. a lot of generator problems are gas related. water, trash and varnish build up in the carb.

GX340 engine always works best with complete carb kit that at least contains main jet, needle valve, main nozzle and orings. It is hard to clean varnish/crud from carb and soaking may make it worse. Kit is not expensive. Check ebay, less than $10. Before you change any parts make sure that your cap is venting properly. Many California gas caps (tall chrome gas cap) may cause fuel lock. Also check that muffler is not restricted with carbon. Good luck