Well.. First of all....
For starters, It is not needed. not on these motors. Second.. You need to know what you are doing in order to use it. There are different types of lock tight. Lock tight or Loctight will not allow you to tighten nuts or bolts as the motor and bike breaks in. Loc tight will not allow the removal of nuts and bolts as well. both are bad news. Lastly.. It is not needed. If you do need it, then you are doing something wrong. Get your engine studs tight !! Then double nut them. That is better than loc tight. Try double nutting. Then, when you need to, you can sung them down as things settle, or remove them when needed. I have built over 300 of these and never ever had to use loc tight. I have only had loc tight used once, that was a warranty motor returned to me, and the Customer used loc tight red on the 3 hole adapter. I freaked when I saw that. I tried to remove the bolts from the engine block. Both of them sheared off inside the engine block. Needless to say, I was mad !! I never did ez them out. We are talking hours to clean up that mess. Loc tight has its place. But it is not on these little motors. The nuts and bolts are just too small to use something as strong as loc tight. That stuff is just too strong. I think the Blue is not as strong as the red. There are different degrees of loc tight. But.. You need to be an expert to use the stuff. And.. I am no expert on using loc tight. Just know this.. When you use it, expect it to be the last time you do anything with that nut or that bolt for this engine. Also.. Using loc tight will void engine warranty. Enjoy the ride..