Triumph Thunderbird User Manual

79
Maintenance and Adjustment
Front Suspension
Front Fork Inspection
Examine each fork for any sign of damage,
scratching of the slider surface, or for oil
leaks.
If any damage or leakage is found, consult an
authorised Triumph dealer.
To check that the forks operate smoothly:
• Position the motorcycle on level
ground.
• While holding the handlebars and
applying the front brake, pump the
forks up and down several times.
• If roughness or excessive stiffness is
detected, consult your authorised
Triumph dealer.
Suspension Adjustment
Front Suspension
The front suspension is factory set and is not
adjustable.
Rear Suspension
1. Rear suspension unit
2. Adjustment tool
The rear suspension is adjustable for pre-load
only.
To change the rear suspension spring
pre-load setting, insert the adjustment tool
supplied in the tool kit into the hole provided
in the adjuster ring.
Turn the adjuster ring clockwise to increase
spring pre-load, and anti-clockwise to
decrease spring pre-load. When delivered
Warning
Riding the motorcycle with defective or
damaged suspension is dangerous and
may lead to loss of control and an accident.
Warning
Never attempt to dismantle any part of the
suspension units, as all units contain
pressurised oil. Skin and eye damage can
result from contact with the pressurised oil.
1
cfgr
2

Triumph Thunderbird Specifications

General

Manufacturer	Triumph
Displacement	1699 cc
Bore x Stroke	107.1 mm x 94.3 mm
Compression Ratio	9.7:1
Clutch	Wet, multi-plate
Gearbox	6-speed
Frame	Tubular steel, twin spine
Front Tyre	120/70 R19
Rear Tyre	200/50 R17
Seat Height	700 mm
Fuel System	Fuel injection
Final Drive	Belt
Front Suspension	Telescopic forks
Rear Suspension	Twin shocks, adjustable preload
Front Brakes	Twin 310mm floating discs
Rear Brakes	Brembo 2-piston caliper
Fuel Tank Capacity	22 L
Power	97 hp (72 kW) @ 5900 rpm