In the factory service manual in one place it tells me to use 2 stroke oil on rod bolt threads, in another place it tells me to use Loctite 680 which is a bearing seater. In one place it tells me to use Loctite 271 to seat the upper main bearing. It looks like the 680 which is made for setting bearings would be a better choice. It is also telling me to use RTV on the crankcase halves. When I pulled it apart it had Gel seal on the crankcase halves. Is this service manual full of mistakes and what should I really use.