heaps
Mate you never stop learning,
things like the upperbearing rotating in the housing, bolts connecting the flex plates all facing the same way, mag base holding nuts loose, locking nuts on the main rotor pitch links loose, alternator bolts loose, broken lockwire, that the spring that holds the mixture lever on the carby in the full rich position should the mixture cable break is not broken, the cowling that covers the cylinders has a piece of wire holding it together, if it breaks or wears through the cowl drops onto the oli return line from the tappet cover and chews a hole in it, loose wires on the back of your alternator, a jumping engine tach probably means you have oil getting past the seal from the engine into the mag and oil is getting on your points and causing your ERPM to misread- next thing the govoner starts overspeeding. never fly a beta 2 that has a heavy weight pulley on the top and a lightweight on the bottom as they are likely to throw the belts, always check carefuly that all the little hat washers that keep the rod ends clear of components are in place, inspect the belts carefully as your life depends on them, look for balling of the material that feathers out the side of the belts, developing longwise splits in the back of the belt. check that the bolts holding the clutch in place between the puleys are looking good, check for loosness of the tail boom without your test causing it to be the problem, look for cracks in the end of the doublers on the tail feathers, listen carefully on start and engagement to the engine and drive system. always check that your belts are in the right grooves after a long engagement or anytime you see the clutch light flicker a bit more than normal, check the thrust washers on the blade bolts for fine cracks.