Yamaha YZF-R1 2007 Service Manual

WATER PUMP
6-10
EAS26520
DISASSEMBLING THE WATER PUMP
1. Remove:
• Water pump seal “1”
• Water pump housing “2”
NOTE:
Tap out the bearing and oil seal from the out-
side of the water pump housing.
2. Remove:
•Oil seal “1”
• Bearing “2”
• Water pump housing “3”
NOTE:
Tap out the bearing and oil seal from the out-
side of the water pump housing.
3. Remove:
• Rubber damper holder “1”
• Rubber damper “2”
(from the impeller, with a thin, flat-head
screwdriver)
NOTE:
Do not scratch the impeller shaft.
EAS26540
CHECKING THE WATER PUMP
1. Check:
• Water pump housing cover “1”
• Water pump housing “2”
• Impeller shaft “3”
• Rubber damper “4”
• Rubber damper holder “5”
• Water pump seals
• Oil seal
Cracks/damage/wear → Replace.
2. Check:
• Bearing
Rough movement → Replace.
3. Check:
• Water pump outlet pipe
• Radiator outlet hose
Cracks/damage/wear → Replace.
EAS26560
ASSEMBLING THE WATER PUMP
1. Install:
• Oil seal “1”
(into the water pump housing “2”)
NOTE:
• Before installing the oil seal, apply tap water
or coolant onto its out surface.
• Install the oil seal with a socket that matches
its outside diameter.
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Yamaha YZF-R1 2007 Specifications

General

Bore x Stroke	77.0 mm x 53.6 mm
Compression Ratio	12.7:1
Fuel System	Fuel Injection
Ignition	TCI (Transistor Controlled Ignition)
Starter	Electric
Transmission	6-speed
Final Drive	Chain
Front Tire	120/70-ZR17
Rear Tire	190/50-ZR17
Seat Height	835 mm
Wheelbase	1, 415 mm
Minimum Ground Clearance	135 mm
Wet Weight	177 kg
Fuel Capacity	18 liters
Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valve, inline-four
Maximum Power	180 hp (134 kW) @ 12, 500 rpm
Maximum Torque	112.7 Nm @ 10, 000 rpm
Front Suspension	43mm
Rear Suspension	Single shock, fully adjustable
Front Brakes	Dual 310mm disc
Rear Brakes	220mm disc; single-piston caliper