Loosen the fuel INLET line going to the front of the inj. pump & spin the engine.. wait till u get fuel up there & tighten.
Next, loosen the bleeder screw to the upper left of the side cover opening.. spin the engine & wait till u get fuel there & NO AIR & tighten..
Now spin the engine for a 10-15 sec count.. if it doesn't hit.. loosen the lines AT THE INJECTORS & spin the engine till u get fuel squirting out of those 2 lines & tighten.
It should hit & fire off now..
Do all the bleeding & starting at full throttle..
U said the rollers & springs were going up & down... what about the control segments.?? were they moving when u move the throttle.??
Does it have a separate shut off cable.?? if yes, have the throttle at FULL & pull & push the shut off at the same time to try to break the segments free..