Hey guys,
I just got a new Thunder Tiger .46 pro abc bb engine. Right out of the box I noticed the shaft was stiff. I knew that it wasn't good to turn it over with out oil so I put some break-in oil down the throttle body and glow hole and tried to spin the engine. It spins but has one stiff spot as the piston gets around TDC. Is this stiffnes normal or is there a problem? I didn't see anything about this in the manual and I don't want to fire it up until I know its ok. Thanks in advance for any advice. -JDMiller