Hey ya'll I was fooling with my two motors this afternoon and on my V4 the prop spins freely with no resistance, but on my 8hp Johnson the prop doesn't spin freely, I did change the lube a while back the best I could and there is no line or anything wrapped around it so what is typically the reason it's doing that? It's 1985 model J8RCOB. Do I need to drop the LU and dig into it?