Technician states: tire leaking due to improperly installed valve stem(02)

Technician states: tire leaking due to improperly installed valve stem(02)

Video Screenshot Gallery: Tire Stem Leak

What Causes A Tire To Leak Around The Rim?
flat front tire due to stem leaking at bottom. any advice? : Dirtbikes
Technician states: tire leaking due to improperly installed valve stem