That cleaning process sure appears to be a slosh and pray method... I might just ask if I can have the parts and I will scrub the affect areas myself. I use to shake the tank more than that on my KLR when I was low on fuel.🤣
I would have liked to see them use some alcohol or vinegar or anything that might help release the Zinc Oxide!!! Maybe the mechanics are bored and lonely... they just want to see us more often.
I noticed in the video the demonstrator switched to one knee down. I think that is key to the procedure.