If you are using the Honda shop manual, don't go with the torque settings for the valve cover bolts. These are 10mm and the book recommends a torque of 34Nm to tighten. No way. Mine broke way before. Luckily they are aluminium so it snapped off and didn't ruin the thread in the cylinder. Just finger tighten and turn 1/4 and you should be ok. Hope I didn't warp the valve cover.