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Motorcycles Specs > Yamaha > Yamaha SR400

Yamaha SR400 Specs

The Yamaha SR400 model is a Allround bike manufactured by Yamaha . In this version sold from year 2019 , the dry weight is  and it is equiped with a Single cylinder, four-stroke motor. The engine produces a maximum peak output power of 22.93 HP (16.7 kW)) @ 6500 RPM and a maximum torque of 27.40 Nm (2.8 kgf-m or 20.2 ft.lbs) @ 3000 RPM . With this drive-train, the Yamaha SR400 is capable of reaching a maximum top speed of  . Regarding the chassis characteristics, responsible for road holding, handling behaviour and ride confort, the Yamaha SR400 have a Semi Double Cradle frame with front suspension being Telescopic and in the rear suspension it is equiped with SwDual shock swingarm . Stock tire sizes are 90/100-18 on the front, and 110/90-18 on the rear. As for stopping power, the Yamaha SR400 braking system includes Single disc. Hydraulic. size 298 mm (11.7 inches) at the front and Expanding brake (drum brake) size 150 mm (5.9 inches) at the rear. 

Yamaha SR400 General Information

Brand Yamaha 
Model Yamaha SR400 
Year 2019 
Year 2019 
Category Allround 
Factory Warranty (Years / miles) 1 Year Limited Factory Warranty 

Yamaha SR400 Dimensions, Aerodynamics and weight

Frame type Semi Double Cradle 
Seat details  
Wheelbase 1,410 mm (55.5 inches) 
Length 2,085 mm (82.1 inches) 
Width 750 mm (29.5 inches) 
Height 1,095 mm (43.1 inches) 
Seat Height 785 mm (30.9 inches) If adjustable, lowest setting. 
Alternate Seat Height  
Ground Clearance 130 mm (5.1 inches) 
Trail size 112 mm (4.4 inches) 
Wheels details Wire spoked 
Front Tyres - Rims dimensions 90/100-18 
Rear Tyres - Rims dimensions 110/90-18 
Front brakes Single disc. Hydraulic. 
Rear brakes Expanding brake (drum brake) 
Front Brakes Dimensions - Disc Dimensions 298 mm (11.7 inches) 
Rear Brakes Dimensions - Disc Dimensions 150 mm (5.9 inches) 
Curb Weight (including fluids) 174.0 kg (383.6 pounds) 
Dry Weight  
Front Percentage of Weight  
Rear Percentage of Weight  
Weight-Power Output Ratio :  
Fuel Tank Capacity 12.00 litres (3.17 gallons) 
Reserve Fuel Capacity  
Carrying Details and Capacity  
Front Suspension Telescopic 
Front Suspension Travel 150 mm (5.9 inches) 
Rear Suspension SwDual shock swingarm 
Rear Suspension Travel 105 mm (4.1 inches) 

Yamaha SR400 Engine and Transmission Technical Data

Engine type - Number of cylinders Single cylinder, four-stroke 
Engine details  
Fuel system Injection 
Engine size - Displacement - Engine capacity 399.00 ccm (24.35 cubic inches) 
Bore x Stroke 87.0 x 62.7 mm (3.4 x 2.5 inches) 
Compression Ratio 8.5:1 
Number of valves per cylinder
Camshaft Valvetrain Configuration Single Overhead Cams (SOHC) 
Maximum power - Output - Horsepower 22.93 HP (16.7 kW)) @ 6500 RPM 
Maximum torque 27.40 Nm (2.8 kgf-m or 20.2 ft.lbs) @ 3000 RPM 
Engine Maximum RPM  
Cooling system Air 
Lubrication system Wet-sump 
Engine oil capacity 2.40 litres (0.16 quarts) 
Exhaust system  
Gearbox 5-speed 
Transmission type, final drive ratio Chain 
Clutch type Wet, Multiple Disc 
Driveline  

Yamaha SR400 Performance

Top Speed  
Acceleration 0 to 100 km/h (0 to 62 mph)  
Acceleration 0 to 400m (1/4 mile)  
Recuperation 60 to 140 km/h in highest gear  
Fuel Consumption - MPG - Economy - Efficiency 3.56 litres/100 km (28.1 km/l or 66.07 mpg) 
CO2 emissions 82.6 CO2 g/km. (CO2 - Carbon dioxide emission) 
Emissions  

Yamaha SR400 Electrical Systems, Ignition and Equipment

Ignition Type TCI: Transistor Controlled Ignition 
Electrical Details  
Starter Type Kick 
Instruments  
Lights