Yamalube Yamabond 4

Every Harley mechanic should have this product in there tool box.

i have rebuilt at least 20 dirt bikes using only 1 of these! i still have about half of it left... This is what Yamaha suggests you use on crankcases of the 2 stroke YZ85,125,250 etc its never failed me and this sticks MUCH better than any other silicone and good news is IT DOES NOT DRY OUT when you put the cap back on and store it for a few weeks. WORTH THE MONEY!

I use it when we rebuild the Race Engines and it works Great !

This Case Glue is what you need to bond two aluminum case halves. This stuff is worth the price and does the trick. Do it Right with Yamabond4

I use this for building all of my motors and have no issues great product

I used this to act as a gasket connected from my exhaust and expansion chamber on my yz125. And I dries in about 20 mins. Great product

This is the sealant I trust when putting cases back together.