C-CAM cones have a much higher resistance to bending stress and therefore exhibit much greater fidelity over their entire operating range.
C - CAM锥盆有弯曲应力高得多的电阻，并因此表现出在它们的整个运行范围大得多的保真度。
2
C. Blow-back through the scavenge air ports, owing to an incorrectly adjusted exhaust cam disc or large resistance in the exhaust system(back pressure not exceed 300 mm wc)