Some of you know I have been working on transplanting a TRA-10D from a 1050 to a 1053. When I started there was alot of cleanup The motor turned by hand just fine and can feel a little resistance on the pressure stroke. Changed oil, have new spark plug ready, put a tablespoon or so of oil in the cylinder and turned the motor over with the starter, no problem. Wanted to lube the walls and valves to be sure nothing will damage this motor.
So far, everything is looking good. So I put the spark plug in, but, not feeding fuel to it yet. I go to turn it over and now the starter seems to be struggling with turning over the motor. Battery is fully charged and charger is on as well.