Yamaha Fz6 N Service Manual
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Page 61
TIGHTENING TORQUES 2-16 EAS20340 ENGINE TIGHTENING TORQUESItem Thread size Q’ty Tightening torque Remarks Spark plugs M10 4 18 Nm (1.8 m·kg, 13 ft·lb) Cylinder head bolt M10 10 See NOTE Cylinder head bolt M6 2 12 Nm (1.2 m·kg, 8.7 ft·lb) Camshaft caps bolt M6 20 10 Nm (1.0 m·kg, 7.2 ft·lb) Cylinder head cover bolt M6 6 12 Nm (1.2 m·kg, 8.7 ft·lb) Camshaft cap oil check bolt M8 1 20 Nm (2.0 m·kg, 14 ft·lb) Air indication system reed valve cover bolt M6 4 10 Nm (1.0 m·kg, 7.2 ft·lb) Air cut-off valve...
Page 62
TIGHTENING TORQUES 2-17 Catalyst pipe and catalyst pipe stay boltM8 1 20 Nm (2.0 m·kg, 14 ft·lb) Muffler joint bolt M8 1 20 Nm (2.0 m·kg, 14 ft·lb) See NOTE Catalyst joint bolt M8 1 20 Nm (2.0 m·kg, 14 ft·lb) See NOTE Exhaust pipe stay bolt M8 2 20 Nm (2.0 m·kg, 14 ft·lb) Catalyst pipe stay bolt M8 1 20 Nm (2.0 m·kg, 14 ft·lb) Muffler stay bolt M8 2 20 Nm (2.0 m·kg, 14 ft·lb) Muffler protector screw M6 2 9 Nm (0.9 m·kg, 6.5 ft·lb) Crankcase bolt (main journal) M8 10 See NOTE Crankcase bolt M6 2 12...
Page 63
TIGHTENING TORQUES 2-18 NOTE: Cylinder head bolt1 First, tighten the bolts to approximately 19 Nm (1.9 m·kg, 14 ft·lb) with a torque wrench following the tightening order. 2 Retighten the bolts 50 Nm (5.0 m·kg, 36 ft·lb) with a torque wrench. Crankcase bolt (main journal) 1 First, tighten the bolts to approximately 12 Nm (1 .2 m·kg, 8.7 ft·lb) with a torque wrench following the tightening order. 2 Retighten the bolts 25 Nm (2.5 m·kg, 18 ft·lb) with a torque wrench. 3 Loosen the all bolts one by...
Page 64
TIGHTENING TORQUES 2-19 Cylinder head tightening sequence. Crankcase tightening sequence.
Page 65
TIGHTENING TORQUES 2-20 EAS20350 CHASSIS TIGHTENING TORQUESItem Thread size Q’ty Tightening torque Remarks Upper bracket pinch bolt M8 2 30 Nm (3.0 m·kg, 22 ft·lb) Steering stem nut M22 1 110 Nm (11 m·kg, 80 ft·lb) Upper bracket and upper handle- bar holder M8 4 23 Nm (2.3 m·kg, 17 ft·lb) Lower bracket pinch bolt – 2 30 Nm (3.0 m·kg, 22 ft·lb) Lower ring nut M25 1 18 Nm (1.8 m·kg, 13 ft·lb) See NOTE Front fork cap bolt M35 2 24 Nm (2.4 m·kg, 17 ft·lb) Damper rod assembly bolt M10 2 23 Nm (2.3 m·kg, 17...
Page 66
TIGHTENING TORQUES 2-21 Seat lock and frame M6 2 7 Nm (0.7 m·kg, 5.0 ft·lb) Licence plate light screw M5 2 4 Nm (0.4 m·kg, 2.9 ft·lb) Rear reflector bolt M5 2 4 Nm (0.4 m·kg, 2.9 ft·lb) Flap and bracket 6 M6 2 7 Nm (0.7 m·kg, 5.0 ft·lb) Bracket 6 and rear frame M6 2 19 Nm (1.9 m·kg, 14 ft·lb) Tail/brake right unit screw M6 2 3 Nm (0.3 m·kg, 2.2 ft·lb) Rear fender cover bolt M5 4 4 Nm (0.4 m·kg, 2.9 ft·lb) Seat handle bolt M8 4 23 Nm (2.3 m·kg, 17 ft·lb) Muffler and rear fender bolt M6 4 7 Nm (0.7 m·kg,...
Page 67
TIGHTENING TORQUES 2-22 NOTE: Lower ring nut1. First, tighten the ring nut to approximately 52 Nm (5.2 m·kg, 38 ft·lb) with a torque wrench, then loosen the ring nut completely. 2. Retighten the lower ring nut to specification. Engine mount bolts and engine mount self locking nut Refer to INSTALLING THE ENGINE on page 5-6. Hydraulic unit bracket 1 and stay bolt (with ABS) M6 2 10 Nm (1.0 m·kg, 7.2 ft·lb) Rear wheel sensor rotor bolt (with ABS) M5 5 6 Nm (0.6 m·kg, 4.3 ft·lb) Stay and frame bolt...
Page 68
LUBRICATION POINTS AND LUBRICANT TYPES 2-23 EAS20360 LUBRICATION POINTS AND LUBRICANT TYPES EAS20370 ENGINE Lubrication point Lubricant Oil seal lips O-rings Bearings and bushes Crankshaft pins Piston surfaces Piston pins Connecting rod bolts Crankshaft journals Camshaft lobes Camshaft journals Valve stems (intake and exhaust) Valve stem ends (intake and exhaust) Valve lifter surface Piston cooler (O-ring) Oil pump rotors (inner and outer) Oil pump housing Oil strainer Clutch (pull rod) Starter clutch...
Page 69
LUBRICATION POINTS AND LUBRICANT TYPES 2-24 EAS20380 CHASSISLubrication point Lubricant Steering bearings and bearing races (upper and lower) Front wheel oil seal (right and left) Rear wheel oil seal Rear wheel drive hub oil seal Rear wheel drive hub mating surface Rear brake pedal shaft Sidestand pivoting point and metal-to-metal moving parts Link and sidestand switch contact point Throttle grip inner surface Brake lever pivoting point and metal-to-metal moving parts Clutch lever pivoting point and...
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LUBRICATION SYSTEM CHART AND DIAGRAMS 2-25 EAS20390 LUBRICATION SYSTEM CHART AND DIAGRAMS EAS20400 ENGINE OIL LUBRICATION CHART