2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 26Get this manual
ENGINE SPECIFICATIONS EBS01002
ENGINE SPECIFICATIONS
Item Cylinder head Volume Warp limit Standard 20.5021.50 cm3 (1.251.31 cu.in) Limit 0.05 mm (0.0020 in)
Cylinder Bore size Camshaft Drive method Camshaft lobe dimensions
74.00074.016 mm (2.91342.9140 in) 74.100 mm (2.9173 in) Chain drive (Right)