2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 129Get this manual
CYLINDER HEAD
6Turn: Crankshaft (several turns counterclockwise) 7Check: "I" mark Align the "I" mark on the pickup coil rotor with the stationary pointer on the crankcase cover "I" mark Align the "I" mark on the camshaft sprocket with the stationary pointer on the cylinder headOut of alignmentCorrectRefer to the installation steps above8Tighten: Camshaft sprocket bolt Camshaft sprocket bolt 60 Nm (6.0 mkg, 44 ftlb)