Yamaha XT660R S Service Manual

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CHAS
REAR SHOCK ABSORBER ASSEMBLY
EAS00695
CHECKING THE REAR SHOCK ABSORBER
ASSEMBLY
1. Check:
• rear shock absorber rod
Bends/damage
→
Replace the rear shock
absorber assembly.
• rear shock absorber
Gas leaks/oil leaks
→
Replace the rear
shock absorber assembly.
• spring
Damage/wear
→
Replace the rear shock
absorber assembly.
• bolts
Bends/damage/wear
→
Replace.
CHECKING THE CONNECTING ARMS AND
RELAY ARM
1. Check:
• connecting arms
1
• relay arm
2
Damage/wear
→
Replace.
2. Check:
• spacers
• oil seals
• bearings
Damage/pitting/scratches
→
Replace.
2
1
INSTALLING THE RELAY ARM
1. Install:
• bearings
1
(to the relay arm and swingarm)
• bearing
2
(to the relay arm)
3 Swingarm
4 Rear shock absorber
5 Relay arm
6 Connecting arm
7 Frame
Installed depth a
7.2 ~ 8.2 mm (0.28 ~ 0.32 in)
Installed depth b
4.0 ~ 5.0 mm (0.16 ~ 0.20 in)
1
7
a
1
6
a
1
a
b
3
4
2
5

Yamaha XT660R S Specifications

General

Displacement	660 cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition System	TCI
Starter System	Electric
Transmission System	5-speed
Final Drive	Chain
Front Suspension System	Telescopic forks
Front Tyre	90/90-21 M/C 54S
Rear Tyre	130/80-17 M/C 65S
Overall Width	865 mm
Overall Height	1, 230 mm
Seat Height	865 mm
Wheelbase	1, 505 mm
Wet Weight	181 kg
Fuel Tank Capacity	15 litres
Oil Tank Capacity	2.9 litres
Engine Type	Liquid-cooled, 4-stroke, single cylinder, SOHC
Maximum Power	48hp (35kW) @ 6, 000rpm
Frame	Steel diamond
Rear Suspension System	Swingarm, (link suspension)
Front Brake	Single 298mm disc, 2-piston caliper
Rear Brake	Single Disc, 245 mm