7. CYLINDER HEAD/VALVES ATV 150/125 Nut Camshaft Holder Install the camshaft holder, washers and nuts on the cylinder head. Tighten the four cylinder head nuts, then tighten two cylinder head bolts completely. Torque: Cylinder head nut: 2 kgf-m (20 N-m, 14 lbf-ft) Cylinder head bolt (see page 7-11): 1 kgf-m (10 N-m, 7.2 lbf-ft) · Apply engine oil to the threads of the cylinder head nuts. Washer · Diagonally tighten the cylinder head nuts in 23 times. Adjust the valve clearance. Turn the cam chain tensioner screw counter- clockwise to release it. Tensioner Screw Apply engine oil to a new O-ring and install it. Tighten the cam chain tensioner cap bolt. Be sure to install the O-ring into the groove properly. Refer to the chapter 3 to perform valve clearance adjustment. Bolt 7-12