Triumph Street Twin User Manual

Maintenance and Adjustment
107
Coolant Level Adjustment
Warning
Do not remove the expansion tank or
radiator pressure cap when the engine
is hot.
When the engine is hot, the coolant
inside the radiator will be hot and also
under pressure.
Contact with this hot, pressurised
coolant will cause scalds and skin
damage.
Caution
If hard water is used in the
cooling system, it will cause scale
accumulation in the engine and
radiator and considerably reduce the
efficiency of the cooling system.
Reduced cooling system efficiency
may cause the engine to overheat and
suffer severe damage.
Note
If the coolant level is being checked
because the coolant has overheated,
also check the level in the radiator and
top up if necessary.
In an emergency, distilled water can be
added to the cooling system. However,
the coolant must then be drained and
replenished with HD4X Hybrid OAT
coolant as soon as possible.
Bonneville T100 (all models),
Bonneville T120 (all models),
Street Scrambler and Street Twin
To adjust the coolant level:
• Allow the engine to cool.
• The expansion tank cap can be
removed from the left hand side of
the motorcycle, towards the rear of
the engine.
• Remove the cap from the expansion
tank and add coolant mixture
through the filler opening until the
level reaches the MAX mark. Refit
the cap.
Speed Twin and Thruxton RS
To adjust the coolant level:
• The expansion tank cap can be
removed from the right hand side of
the motorcycle, towards the rear of
the engine.
• Remove the sprocket cover.
• Remove the cap from the expansion
tank and add coolant mixture
through the filler opening until the
level reaches the maximum (top)
mark.
• Refit the cap. Refit the sprocket
cover to 9 Nm.
Coolant Change
It is recommended that the coolant
is changed by an authorised Triumph
dealer in accordance with scheduled
maintenance requirements.

Triumph Street Twin Specifications

General

Engine Type	Liquid-cooled, 8 valve, SOHC, 270° crank angle parallel twin
Displacement	900 cc
Bore x Stroke	84.6 x 80 mm
Compression Ratio	11.0:1
Max Torque	80 Nm @ 3, 800 rpm
Fuel System	Multipoint sequential electronic fuel injection
Final Drive	Chain
Clutch	Wet, multi-plate assist clutch
Gearbox	5-speed
Frame	Tubular steel, twin cradle
Front Tire	100/90-18
Rear Tire	150/70 R17
Dry Weight	198 kg
Wet Weight	216 kg
Fuel Consumption	4.1 l/100 km
CO2 Emissions	93 g/km
Max Power	65 PS (64 bhp) @ 7, 500 rpm
Exhaust	Brushed 2 into 2 exhaust system with twin brushed silencers
Front Suspension	41mm forks
Rear Suspension	Twin shocks with adjustable preload
Front Brakes	Single 310mm disc, Nissin 2-piston floating caliper
Rear Brakes	Single 255mm disc, Nissin 2-piston floating caliper
Front Wheel	Cast aluminium alloy, 18 x 2.75 in
Rear Wheel	Cast aluminium alloy, 17 x 4.25 in
Seat Height	765 mm
Fuel Tank Capacity	12L
Width (Handlebars)	780 mm
Wheelbase	1450 mm
Rake	25.1 °
Trail	102.4 mm