What are the required cranking amps for a briggs and stratton 18hp

SOURCE: lawn mower motor just stalls for no reason

Check for water in gas tank and filter.

SOURCE: My lawn mower briggs & stratton engine 650 series will not start

check the fly wheel and coil it may have rust on it if so sand it off

SOURCE: briggs & stratton 18 HP intek ohv won't start

check the safety switches one of them are bad

SOURCE: I have a troy bilt mower with a briggs &

There should be a drain plug on the underside of the mower deck. Raise that side of deck, remove the plug and drain the oil. Replace the plug and add new oil. Hope this helped.

SOURCE: The lawn mower starts and then sputters and shuts off

Sounds like you have a carb problem here. If your not familiar with the carb have someone qualified to do it. Other wise it sounds like the jet in the carb has dirt in it, obstructing the gas passage. Most of those jets are directly in the bottom of the carburetor. Remove it and be careful not to drop the bowl because if you do you could cause the float to move and that could get stuck and then not shut the fuel flow off to the bowl when re installed. Good luck