Yamaha SRX400: review, history, specs

From BikesWiki.com, Japanese Motorcycle Encyclopedia

Class: classic

Production: 1985-1996

Related: Yamaha SR400, Yamaha SRX600

Also called: Yamaha SRX-4

Models
Yamaha SRX-4

(Japan)

1985

Yamaha SRX-4

(Japan)

1988

Yamaha SRX400

(Japan)

1991-1996

Yamaha SRX-4 (1985)
Yamaha SRX-4 (1988)
Yamaha SRX400 (1991-1996)

History

History
Year Country Name / Frame / Engine
1985 Japan Name: Yamaha SRX-4

Code: 1JL0

1988 Japan Name: Yamaha SRX-4

Code: 3HU1, 2NY0

1991 Japan Name: Yamaha SRX400

Code: 3VN1, 3VN2

1996 Japan Name: Yamaha SRX400

Code: 3VN5

Specifications

Yamaha SRX400: specs

Specifications
DIMENSIONS Overall length 2085 mm / 82,1 in - SRX400 (1985, 1988)

2090 mm / 82,3 in - SRX400 (1991-1996)

Overall width 705 mm / 27,7 in - SRX400 (1985, 1988)

720 mm / 28,3 in - SRX400 (1991-1996)

Overall height 1055 mm / 41,5 in - SRX400 (1985, 1988)

1045 mm / 41,1 in - SRX400 (1991-1996)

Seat height 760 mm / 29,9 in
Wheelbase 1390 mm / 54,7 in - SRX400 (1985, 1988)

1425 mm / 56,1 in - SRX400 (1991-1996)

Ground clearance 145 mm / 5,7 in - SRX400 (1985, 1988)

140 mm / 5,5 in - SRX400 (1991-1996)

Dry weight
Curb (wet) weight 168 kg / 370 lbs – SRX400 (1985)

165 kg / 364 lbs – SRX400 (1988)

170 kg / 374 lbs – SRX400 (1991-1996)

FRAME Type Tubular double cradle (steel)
Front suspension, travel 36 mm telescopic fork, 140 mm / 5,5 in – SRX400 (1985-1988)

38 mm telescopic fork KYB, 140 mm / 5,5 in – SRX400 (1991-1996)

Rear suspension, travel Swingarm with twin-shock (5-way adjustable spring pre-load), 100 mm / 3,9 in – SRX400 (1985-1988)

Swingarm with mono-shock (9-way adjustable spring pre-load), 100 mm / 3,9 in – SRX400 (1991-1996)

Front tire size 100/80-18 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 size 120/80-18 62S – SRX400 (1985, 1988 2NY)

120/80R-18 62H – SRX400 (1988 3HU1)

140/70R-17 66H – SRX400 (1991-1996)

Front brake Single disc, 267 mm, 2-piston caliper – SRX400 (1985)

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

Rear brake Single disc, 245 mm, 2-piston caliper
Fuel capacity 15,0 l / 3,96 US gal (reserve – 3,0 l) – SRX400 (1985, 1988)

14,0 l / 3,69 US gal (reserve – 4,0 l) – SRX400 (1991-1996)

Trail 108 mm / 4,2 in – SRX400 (1985, 1988)

92 mm / 3,6 in – SRX400 (1991-1996)

Fuel economy / consumption 4,8 l / 100 km (49,0 US mpg)
ENGINE Type Air-cooled 4-stroke
Cylinder arrangement Single cylinder
Bore & Stroke 87,0 x 67,2 mm
Displacement 399 cm³ (24,3 cu in)
Compression ratio 9.2:1
Valve train Chain driven SOHC, 4 valves
Max. power 33,0 hp (24,3 kW) / 7000 rpm
Max. torque 33,3 Nm (3,4 kg-m) / 6000 rpm
Acceleration 0 to 100 km/h (0-60 mph) 8,6 sec.
Top speed 140 kmh / 87 mph
CARBURETION SYSTEM Type Carburetor, 1x Teikei Y27PV
ID
DRIVE TRAIN Clutch Wet, multi-plate, cable operated
Transmission 5-speed
Final drive Chain
Primary reduction 2.533
Final reduction 2.928 – SRX400 (1985, 1988 2NY)

2.941– SRX400 (1988 3HU1, 1991, 1996)

Gear ratio

I

II

III

IV

V


2.307

1.588

1.200

0.954

0.807 (1985); 0.791 (1988+)

ELECTRICAL Ignition CDI – SRX400 (1985, 1988)

Fully transistorized – SRX400 (1991, 1996)

Kickstart – SRX400 (1985, 1988)

Electric starter motor – SRX400 (1991, 1996)

Alternator A.C. magneto
Battery capacity 12V-5Ah – SRX400 (1985, 1988)

12V-8Ah – SRX400 (1991, 1996)

Images

Yamaha SRX400: images, gallery.

Yamaha SRX400
Yamaha SRX400
Yamaha SRX400

Videos

Yamaha SRX400: video.

Yamaha SRX400 1988

Manuals

Yamaha SRX400: manuals, parts, microfiches.