2-3
ENGINE SPECIFICATIONS
Spark plug(s)
Manufacturer/model NGK/LMAR9A-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
limit 0.080 mm (0.0032 in)
Camshaft lobe dimensions
Lobe height limit (Intake) 35.590 mm (1.4012 in)
Lobe height limit (Exhaust) 35.620 mm (1.4024 in)
Camshaft runout limit 0.030 mm (0.0012 in)
Valve, valve seat, valve guide
Valve clearance (cold)
Intake 0.11–0.20 mm (0.0043–0.0079 in)
Exhaust 0.28–0.32 mm (0.0110–0.0126 in)
Valve dimensions
Valve seat contact width limit (intake) 1.6 mm (0.06 in)
Valve seat contact width limit (exhaust) 1.8 mm (0.07 in)
Valve stem diameter limit (intake) 4.445 mm (0.1750 in)
Valve stem diameter limit (exhaust) 4.430 mm (0.1744 in)
Valve guide inside diameter (intake) 4.500–4.512 mm (0.1772–0.1776 in)
Valve guide inside diameter (exhaust) 4.500–4.512 mm (0.1772–0.1776 in)
Valve-stem-to-valve-guide clearance limit
(intake) 0.080 mm (0.0032 in)
Valve-stem-to-valve-guide clearance limit
(exhaust) 0.100 mm (0.0039 in)
Valve stem runout 0.020 mm (0.0008 in)
Valve spring
Free length limit (intake) 37.34 mm (1.47 in)
Free length limit (exhaust) 35.89 mm (1.41 in)
Cylinder
Bore 78.000–78.010 mm (3.0709–3.0713 in)
Wear limit 78.060 mm (3.0732 in)
Piston
Diameter 77.975–77.990 mm (3.0699–3.0705 in)
Measuring point (from piston skirt bottom) 9.0 mm (0.35 in)
Piston-to-cylinder clearance 0.010–0.035 mm (0.0004–0.0014 in)
Piston pin bore inside diameter limit 17.043 mm (0.6710 in)
Piston pin outside diameter limit 16.970 mm (0.6681 in)
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