hey guys i got a briggs 3.75 hp sprint and the engine seems to be
seizing and locking up , when i first got the mower i cleaned the carb, checked the diaphram then did the valve clearence, all seemed to be good i also checked the crank to se if was bent or not,then i took the head off decarboned it and checked the bore all was good she fired up first pull reved up and held em nicely,, after a 2 min. it started slowing down and seizing up until it locked up i managed to free it up after 5 mins of rocking the base plate sqwuirting wd down the plug hole . and she started again but ran like a dog, now i did check the oil after this happend and there was a bit that had been thrown onto the dipstick so it has a little bit, but will low oil do this ??? lack of lube somewhere in the motor crating heat makeing it seize up , if not what else could make this happen ??? i also thought these motors had a low oil cut out switch to kill the motor if no oil,