No doubt about it, room temperature vulcanizing (RTV) sealants are the best thing to hit motorcycle engines since the recirculating oil pump. Unfortunately, you can sometimes have too much of a good thing. Since these sealants come in toothpaste-tube-type containers, many of us assume the material should be applied the same way. We push a long, thick bead along the gasket surface and bolt the parts together. The problem is that whatever you see ooze out has also oozed in, usually toward the center of the engine, where it can do all sorts of mischief, like plug up an oil galley or gum up a bearing. Here's the right way to go about applying an RTV sealant.