After only 2 months use, this mower now surges at idle but works fine when blade is engaged. Ordered New carb for it. Hope.it fixes the problem. Is it easy to replace?
Thanks
Before going to the trouble of replacing the carb, you may try some fuel system cleaner or Sea Foam. Sometimes, it can be enough to clean out what is likely a partially-blocked jet or passageway in the carburetor.
Failing that, an R&R (remove and replace) of the carb is not bad; you'll need a 10mm socket/driver and needle-nose pliers to remove the fuel tube clip. The carb bowl will be full of fuel, and will leak out if you turn the carb sideways or upside down, so have a catch pan ready. Be sure to disconnect the spark plug cap, wear safety goggles, and let the mower fully cool off.
Strongly suggest you drain out the fuel from the tank after disconnecting the fuel tube from the carburetor. Fill with FRESH gasoline only.
There are two, 85mm bolts (purple highlight) that hold the air cleaner base, carburetor, and all the gaskets/spacers, etc. to the engine. It can be much easier to get all the parts back on if you temporarily install a couple of long studs (yellow highlight), thread all the parts on, remove ONE stud and replace it with the original bolt, then remove the SECOND stud and install the remaining original bolt:
Not everything shown below has to come off the engine to replace the carburetor. The control base, for example, can be loosened, but does not have to be removed. Since your mower is so new, the gaskets (pink highlight) can
probably be reused, but replace if they show any damage, tears, etc. Be 100% sure you get them in the right order and position. It is easy to get one fitted backwards or upside down, and the engine won't start.