Yamaha YZF-R1 2007 Service Manual

ENGINE SPECIFICATIONS2-3Spark plug (s)Manufacturer/model NGK/CR9EKSpark plug gap 0.6–0.7 mm (0.024–0.028 in)Cylinder headVolume 14.00–14.80 cm³ (0.85–0.90 cu.in)Warpage limit* 0.10 mm (0.0039 in)CamshaftDrive system Chain drive (right)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)Camshaft lobe dimensionsIntake A 34.450–34.550 mm (1.3563–1.3602 in)Limit 34.350 mm (1.3524 in)Intake B 25.170–25.270 mm (0.9909–0.9949 in)Limit 25.070 mm (0.9870 in)Exhaust A 33.550–33.650 mm (1.3209–1.3248 in)Limit 33.450 mm (1.3169 in)Exhaust B 25.192–25.292 mm (0.9918–0.9957 in)Limit 25.092 mm (0.9879 in)Camshaft runout limit 0.030 mm (0.0012 in)Timing chainModel/number of links RH2020/124Tensioning system AutomaticValve clearance (cold)Intake 0.11–0.20 mm (0.0043–0.0079 in)Exhaust 0.26–0.30 mm (0.0102–0.0118 in)Valve dimensionsValve head diameter A (intake) 30.90–31.10 mm (1.2165–1.2244 in)Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk