Rebuilding a stock motor. Cranks checked out ok per the manual. Put new bearings and seals on the crank, it turned easy sitting in the case half. Put the sealer on the cases put the other half on and torqued the bolt per the manual. The crank seems to turn hard. I have not put the fly wheel on, if I grab the end of the crank I can not turn it. On the other side with the gears I put a socket on the nut I can turn it by hand( without a ratchet) it just seems real tight. I lubed the seals and the bearing. This not my first motor but seems to turn harder than the others.