Mine did not come with instructions and I couldn't find any on the website or anything, so I was not aware that I was to use some RTV on the insert until after. I also was not completely sure how to set it into place with the included tool. Being my usual impatient self, I decided to figure it out myself and repair the drain plug hole on my dirt bike. After a couple issues, I got it to work. Since it works as intended, I won't give it less than 4 stars, but I was disappointed by the missing instructions