I have an Indian ami-50 and the other day i thought it might be low on oil. I put around 1/2 a quart into the thing, its a 4 stroke. and when I took off it started to ooze oil out of the top of the engine casing. Now I dont know much about this bike, or how to fix it, but should oil come out of the engine if i overfill it? It is very hard to test the oil level in the thing so I never know if im ok. Plus it normally leaks some oil. Any help. should this have happened?