Yamaha SRX 400

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Yamaha SRX-4 (1985)

The Yamaha SRX 400 appeared in 1985 as an offshoot of the retro series Yamaha SR400 and was intended for a sportier ride. Unlike the SR, the SRX received a different cylinder head (4 valves), disc brakes, alloy wheels, a sportier design and ergonomics. The first versions of the model were called “Yamaha SRX-4”.

In 1988, the model was restyled with new wheels, an enlarged brake disc and a 4-piston caliper. The model is still called the Yamaha SRX-4.

In 1991, the model undergoes its last restyling, receiving an updated appearance, a new front fork, a new rear suspension (monoshock instead of a double shock absorber, 9 steps of preload adjustment instead of 5), new 17 'wheels, a reduced fuel tank (14 liters instead of 15 l), a fully transistor ignition system (instead of CDI) and an electric starter (previous versions were equipped only with a "kick"). This generation changes its name to - Yamaha SRX400.

The main feature of the Yamaha SRX400 is the 399cc, 1-cylinder, air-cooled engine producing 33 hp. power and 34 Nm of torque. There was also an export modification of the Yamaha SRX600, which had a larger engine and some other differences. The SRX400 was intended for the Japanese domestic market only.

1996 was the last year of production of the Yamaha SRX 400, after which it finally left the market and did not receive further development.

The main competitors of the Yamaha SRX 400 in the class:

Photos

Yamaha SRX400
Yamaha SRX400
Yamaha SRX400



Specifications

Specifications Yamaha SRX 400:

ModelYamaha SRX400
Motorcycle typeclassic
Release year1985-1996
Framesteel tubular
Engine type1-cylinder, 4-stroke
Working volume399 cc cm.
Bore / stroke87.0 x 67.2mm
Compression ratio9.2: 1
Coolingair
Number of valves per cylinderSOHC, 4 valves
Fuel supply systemCarburetor, 1x Teikei Y27PV
Ignition typeCDI - SRX400 (1985, 1988)

Fully Transistor - SRX400 (1991, 1996)

Kick Start - SRX400 (1985, 1988)

Electric starter - SRX400 (1991, 1996)

Maximum power33.0 h.p. (24.3 kW) at 7000 rpm
Maximum torque33.3 Nm (3.4 kg-m) at 6000 rpm
Gearbox5-speed
Drive typechain
Front tire size100 / 80-18 53S - SRX400 (1985)

100 / 90-17 55S - SRX400 (1988 2NY)

110 / 80R-17 57H - SRX400 (1988 3HU1)

110 / 70R-17 54H - SRX400 (1991-1996)

Rear tire size120 / 80-18 62S - SRX400 (1985, 1988 2NY)

120 / 80R-18 62H - SRX400 (1988 3HU1)

140 / 70R-17 66H - SRX400 (1991-1996)

Front brakes1 disc, 267mm, 2-piston caliper - SRX400 (1985)

Single disc, 320mm, 4-piston caliper - SRX400 (1988-1996)

Rear brakes1 disc, 245 mm, 2-piston caliper
Front suspension36mm telescopic fork, 140mm travel - SRX400 (1985-1988)

38mm KYB Telescopic Fork, 140mm Travel - SRX400 (1991-1996)

Rear suspensionMeatnikovaya with two shock absorbers (5-stage preload adjustment), travel - 100 mm - SRX400 (1985-1988)

Swingarm with monoshock (9-stage preload adjustment), stroke - 100 mm - SRX400 (1991-1996)

Motorcycle length2085mm - SRX400 (1985, 1988)

2090 mm - SRX400 (1991-1996)

Motorcycle width705mm - SRX400 (1985, 1988)

720mm - SRX400 (1991-1996)

Motorcycle height1055mm - SRX400 (1985, 1988)

1045 mm - SRX400 (1991-1996)

Wheelbase1390mm - SRX400 (1985, 1988)

1425 mm - SRX400 (1991-1996)

Saddle height760 mm
Minimum ground clearance145mm - SRX400 (1985, 1988)

140mm - SRX400 (1991-1996)

Acceleration to 100 km / h8.6 sec
Maximum speed140 km / h
Fuel tank capacity15.0 L (including 3.0 L reserve) - SRX400 (1985, 1988)

14.0 L (including reserve - 4.0 L) - SRX400 (1991-1996)

Motorcycle weight (curb)168 kg - SRX400 (1985)

165 kg - SRX400 (1988)

170 kg - SRX400 (1991-1996)

Documentation