First check for correct assembly of the tail rotor: Stand on the right side of the helicopter looking at the tail rotor. Rotate the tail so that one blade is pointed straight toward the front. The leading edge of the front blade need to be pointed up. The blade grip arm for that blade also needs to be on the top. Rotate the tail rotor so the other blade is point to the front and check it also.
With the rudder stick on the radio centered and the trim centered there should be 4.5mm between the pitch slider and the tail rotor casing with the collective stick centered up/down and left/right.
Replace the mounting tape if needed. The gyro should feel like it's on a cushion, if there is any slop then replace the tape. I use CSM tape on all my gyros.
Check that the belt is the right direction:
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Check radio/gyro:
First crank up the helicopter and verify the engine is not turning backwards. If the engine is turning backwards, the tail will spin full time, also as you try to lift off, the main rotor will not turn (unless the clutch is broke). Get the heli light on the skids (not off the ground) and give a small right rudder command. If the nose goes to the right and it rotates at the corresponding speed then try going to left. If it does go left then you are set to go.
Steps
to check for the correct directions of the tail system
Flying:
R30/50/60/90 Here are the steps to figure
this out, please don't skip any, check each even if you
know you have checked them before. I have found many
times weird problems are only strange because you assumed
something was right and did not check it in detail. Been-there-done-that
<grin>
Move the rudder stick to the right, the control rod for
the tail should be pulled toward the front of the
helicopter. Next pick up the helicopter by the rotor head.
Grab the tail boom and quickly rotate the helicopter so
the nose goes to the left. Watch the control rod, it
needs to move forward. If it does not then the gyro is
reversed.
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