Cheaper mowers that don't use high quality
bearings can generally withstand a wash down when hot without any problems.
Where you direct the water is important. Avoid the cables, a tiny amount
of water in a cable will cause it fail quickly. Avoid the air filter and
the engine as much as possible. Try to just wash the mower deck.


I cracked the block of a 1970's vintage 5hp Sears push mower washing it
down as a kid.