I have a Kubota RTV X1100C that needs a new bushing attached to the breather tube on the engine. The bushing fits into the hole in the engine, then I need to push the breather tube into the hole into the bushing to secure it. How do I get the tube to push all the way into the bushing. I've attempted to oil the breather tube but it only goes about halfway in before the bushing pops out of the hole. Is there a special tube and/or way to get this back together?