Yamaha FJR13AG, Service Manual

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ENGINE SPECIFICATIONS
2-3
Bypass valve opening pressure 78.4–117.6 kPa (0.78–1.18 kgf/cm², 11.4–17.1
psi)
Relief valve operating pressure 480.0–560.0 kPa (4.80–5.60 kgf/cm², 69.6–81.2
psi)
Cooling system
Coolant quantity
Radiator (including all routes) 2.60 L (2.75 US qt, 2.29 Imp.qt)
Coolant reservoir (up to the maximum level
mark) 0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator cap valve opening pressure 93.3–122.7 kPa (0.93–1.23 kgf/cm², 13.5–17.8
psi)
Thermostat
Valve opening temperature 69.0–73.0 °C (156.20–163.40 °F)
Valve full open temperature 85.0 °C (185.00 °F)
Valve lift (full open) 8.0 mm (0.31 in)
Water pump
Water pump type Single suction centrifugal pump
Impeller shaft tilt limit 0.15 mm (0.006 in)
Spark plug(s)
Manufacturer/model NGK/CPR8EA-9
Spark plug gap 0.8–0.9 mm (0.031–0.035 in)
Cylinder head
Warpage limit 0.10 mm (0.0039 in)
Camshaft
Camshaft cap inside diameter 24.500–24.521 mm (0.9646–0.9654 in)
Camshaft journal diameter 24.459–24.472 mm (0.9630–0.9635 in)
Camshaft-journal-to-camshaft-cap clearance 0.028–0.062 mm (0.0011–0.0024 in)
Limit 0.080 mm (0.0032 in)
Camshaft lobe dimensions
Lobe height (Intake) 33.050–33.150 mm (1.3012–1.3051 in)
Limit 32.950 mm (1.2972 in)
Lobe height (Exhaust) 33.050–33.150 mm (1.3012–1.3051 in)
Limit 32.950 mm (1.2972 in)
Camshaft runout limit 0.030 mm (0.0012 in)
Valve, valve seat, valve guide
Valve clearance (cold)
Intake 0.15–0.22 mm (0.0059–0.0087 in)
Exhaust 0.18–0.25 mm (0.0071–0.0098 in)
Valve dimensions
Valve seat contact width (intake) 0.90–1.10 mm (0.0354–0.0433 in)
Limit 1.6 mm (0.06 in)
Valve seat contact width (exhaust) 0.90–1.10 mm (0.0354–0.0433 in)
Limit 1.6 mm (0.06 in)
Valve stem diameter (intake) 4.975–4.990 mm (0.1959–0.1965 in)
Limit 4.945 mm (0.1947 in)
Valve stem diameter (exhaust) 4.965–4.980 mm (0.1955–0.1961 in)
Limit 4.935 mm (0.1943 in)
Valve guide inside diameter (intake) 5.000–5.012 mm (0.1969–0.1973 in)