Yamaha FZ1-N Service Manual
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Contents
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OIL PUMP5-62EAS24930REMOVING THE OIL PAN1. Remove:• Oil level switch “1”• Oil pan “2”• Oil pan gasket• Dowel pinsNOTE:Loosen each bolt 1/4 of a turn at a time, instages and in a crisscross pattern. After all ofthe bolts are fully loosened, remove them.ET2D1012CHECKING THE SPROCKET AND CHAIN1. Check:• Oil/water pump assembly drive sprocket “1”Cracks/damage/wear → Replace thedefective part(-s).2. Check:• Oil/water pump assembly drive chain “1”Damag/stiffness → Replace the oil/waterpump assembly drive chain and oil/waterpump assembly drive sprocket as a set.EAS24960CHECKING THE OIL PUMP1. Check:• Oil pump driven gear “1”• Oil pump rotor housing “2”• Oil pump coverCracks/damage/wear → Replace thedefective part(s).2. Measure:• Inner-rotor-to-outer-rotor-tip clearance “a”• Outer-rotor-to-oil-pump-housing clearance“b”3. Check:• Oil pump operationRough movement → Repeat steps (1) and(2) or replace the defective part(s).Inner-rotor-to-outer-roter-tip-clearance0.01–0.10 mm(0.0004–0.0039 in)Limit0.18 mm (0.0071 in)Outer-rotor-to-oil-pump-hous-ingclearance0.09–0.15 mm(0.0035–0.0059 in)Limit0.22 mm (0.0087 in)1. Oil pump inner rotor2. Oil pump outer rotor3. Oil pump housing |
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