Yamaha YZF-R6 99 User Manual

4-68
CONNECTING RODS AND PISTONS
ENG
NOTE:
CAUTION:
NOTE:
NOTE:
EAS00393
REMOVING THE CONNECTING RODS AND
PISTONS
The following procedure applies to all of the
connecting rods and pistons.
1. Remove:
 connecting rod cap
1
 big end bearings
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
2. Remove:
 piston pin clips
1
 piston pin
2
 piston
3
 connecting rod
Do not use a hammer to drive the piston pin
out.
 For reference during installation, put identifi-
cation marks on the piston crown.
 Before removing the piston pin, deburr the pis-
ton pin clip groove and the piston pin bore area
in the piston. If both areas are deburred and
the piston pin is still difficult to remove, remove
it with the piston pin puller
4
.
Piston pin puller
90890-01304
3. Remove:
 top ring
 2nd ring
 oil ring
To remove a piston ring, open the end gap with
your fingers and lift the other side of the ring
over the piston crown.

Yamaha YZF-R6 99 Specifications

General

Bore x Stroke	65.5 mm x 44.5 mm
Compression Ratio	12.4:1
Ignition	Digital TCI
Transmission	6-speed
Final Drive	Chain
Front Suspension	Telescopic fork
Front Tire	120/60-ZR17
Rear Tire	180/55-ZR17
Seat Height	820 mm
Engine Type	liquid-cooled 4-stroke DOHC 16-valve, inline-4
Rear Suspension	Swingarm
Front Brakes	Dual disc
Rear Brakes	Single disc
Wheelbase	1, 380 mm
Fuel Capacity	17 liters
Dry Weight	169 kg
Length	2, 040 mm
Height	1, 090 mm