Originally Posted by
RC Geezer
Does it spin freely with the top plate off?
ifso
Put the top plate back on and let it rip...the spur will set itself after the first run....the top plate almost acts as a thrust control
took a closer look and it seemed that one of the screws in the differ was slightly backed out enough to rub... cranked it down now it's good to go... my first build, forgive me.. ha!