Yamaha YZF-R7 User Manual

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ENG
CRANKCASE
EB412420
CHECKING THE CRANKCASE
1. Thoroughly wash the crankcase halves
in a mild solvent.
2. Thoroughly clean all the gasket surfaces
and crankcase mating surfaces.
3. Check:
• upper crankcase
• lower crankcase
Cracks/damage → Replace.
• oil delivery passages
Obstruction → Blow out with com-
pressed air.
EB412440
CHECKING THE BEARINGS AND OIL SEALS
1. Check:
• bearings
Clean and lubricate the bearings, then
rotate the inner race with your finger.
Rough movement → Replace.
CHECKING THE SPROCKETS AND CHAINS
1. Check:
• crankshaft sprocket
• oil/water pump assembly drive
sprocket
Cracks/damage/wear → Replace the
defective part(-s).
2. Check:
• timing chain
Damage/stiffness → Replace the tim-
ing chain and crankshaft as a set.
• oil/water pump assembly drive chain
Damage/stiffness → Replace the oil/
water pump assembly drive chain and
oil/water pump assembly drive
sprocket as a set.

Yamaha YZF-R7 Specifications

General

Bore x Stroke	80.0mm x 68.6mm
Compression Ratio	11.5:1
Fuel Delivery	Fuel injection
Final Drive	Chain
Front Brakes	Dual 298mm hydraulic disc; ABS
Rear Brakes	245mm hydraulic disc; ABS
Front Tire	120/70ZR17
Rear Tire	180/55ZR17
Wheelbase	54.9 in
Seat Height	32.9 in
Fuel Capacity	3.4 gal
Wet Weight	414 lb
Ground Clearance	5.3 in
Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valves
Transmission	6-speed
Front Suspension	41mm KYB inverted fork, adjustable preload, rebound and compression damping; 5.1-in travel
Rear Suspension	Single shock, adjustable preload and rebound damping; 5.1-in travel