O Ring, VST Seal Compatible with Yamaha V6 EFI 1999 & Up only

I installed these with a small amount of Yamalube grease. The first one leaked on my first sea trial. I ordered again and the second one did okay. I installed them both the same way, with a little yamalube grease and pushed into the groove of the VST. The one that leaked feels smooth. Not sure why fuel was leaking out the top of the VST but it did and now it doesn't.

Works perfectly with the VST tank

This gasket was deformed and would not lay flat. Tried to install and leaked because of this. Had to reuse old gasket and didn’t have leaks.

good quality

As described