If valve clearance needs to be adjusted, loosen the locknut on rocker arm adjusting screw.Turn adjusting screw until feeler gauge slips with a slight drag.

• 如果气门间隙需要调节，松开摇臂调节螺丝上的防松螺母，转动调节螺丝直到测隙规滑动时稍带阻力为止。