I've got this older MTD mower with a 281707-0137 engine in it.
Sat for two years not running.
Drained fuel system.
Removed carb. and cleaned out.
Runs good at idle, when I bring up full speed it starts to pump engine
oil into the carb. load up and quit in a cloud of oily smoke.
Restart at idle, get running at idle to clear oil from cylinder.
When it's running at idle it runs good.
if I crack open the dip stick it will quit running.
Ideas?