Modification spirit again, facing a broken balancer, if you do not want to bother you can replace and install a new one, but if you want to improve, following this a bit more could help.
The possibility of fracture can occur in three places: at the end of the outer, middle or base of the balancer.
Repairs can be done is by gluing using power glue or epoxy glue. To strengthen the connection can plug pins in the middle of both broken rod and or give socket covering the broken part.
Giving pin can be done by: drill a hole in the both balancer rod that broke about 5 mm (depending on size of balancer rod), then drops power glue on the both hole and insert the pin at the same time to do connecting.
If the broken at the end of the outside right on the ballast may be difficult to do connecting. The solution is to not connect, but gives a weight at the end of, to be wrapped around tin solder and glue so that the location of loops are not shifted. Should be done also on the other side by cutting the balancer in the same position, the goal to keep it balanced.
It should be noted, after completion connecting should balance both sides of the balancer was observed, if the balancer is not balanced will disturb the stability of helicopters, usually jointed sections will be more heavy because the given socket or pin, the solution by giving the socket on the part that is not broken, the slide socket to get a balance.
as usual, helicopters do not directly play, allow 24 hours or more for perfect bonding.