2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 27Get this manual

2008 Yamaha Raptor 250SE / 250SE2 Factory Service Manual, Page 27

ENGINE SPECIFICATIONS Item Valve, valve seat, valve guide Valve clearance (cold) IN EX Valve dimensions Standard 0.050.10 mm (0.00200.0039 in) 0.100.15 mm (0.00390.0059 in)

Head Diameter

Face Width

Seat Width

Margin Thickness

"A" head diameter "B" face width "C" seat width

IN EX IN EX IN EX

33.9034.10 mm (1.33461.3425 in) 28.4028.60 mm (1.11811.1260 in) 2.26 mm (0.0890 in) 2.26 mm (0.0890 in) 0.901.10 mm (0.03540.0433 in) 0.901.10 mm (0.03540.0433 in) 0.801.20 mm (0.03150.0472 in) 0.801.20 mm (0.03150.0472 in) 5.9755.990 mm (0.23520.2358 in) 5.9605.975 mm (0.23460.2352 in) 6.0006.012 mm (0.23620.2367 in) 6.0006.012 mm (0.23620.2367 in) 0.0100.037 mm (0.00040.0015 in) 0.0250.052 mm (0.00100.0020 in)

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