Yamaha SR400 - Motorcycle Technical Specifications

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Specifications
EAU69993
Dimensions:
Overall length:
2085 mm (82.1 in)
Overall width:
750 mm (29.5 in)
Overall height:
1095 mm (43.1 in)
Seat height:
785 mm (30.9 in)
Wheelbase:
1410 mm (55.5 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
2.4 m (7.87 ft)
Weight:
Curb weight:
174 kg (384 lb)
Engine:
Combustion cycle:
4-stroke
Cooling system:
Air cooled
Valve train:
SOHC
Number of cylinders:
Single cylinder
Displacement:
399 cm
3
Bore  stroke:
87.0  67.2 mm (3.43  2.65 in)
Compression ratio:
8.5 : 1
Starting system:
Kickstarter
Lubrication system:
Dry sump
Engine oil:
Recommended brand:
YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:
Oil change:
2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter removal:
2.10 L (2.22 US qt, 1.85 Imp.qt)
Air filter:
Air filter element:
Oil-coated paper element
Fuel:
Recommended fuel:
Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity:
12 L (3.2 US gal, 2.6 Imp.gal)
Fuel reserve amount:
2.2 L (0.58 US gal, 0.48 Imp.gal)
Fuel injection:
Throttle body:
ID mark:
2RD1 00
Spark plug(s):
Manufacturer/model:
NGK/BPR6ES
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Wet, multiple-disc
Drivetrain:
Primary reduction ratio:
2.567 (77/30)
Final drive:
Chain
Secondary reduction ratio:
2.947 (56/19)
Transmission type:
Constant mesh 5-speed
Gear ratio:
1st:
2.357 (33/14)
2nd:
1.556 (28/18)
3rd:
1.190 (25/21)
4th:
0.917 (22/24)
5th:
0.778 (21/27)
Chassis:
Frame type:
Semi double cradle
Caster angle:
27.7 
Trail:
111 mm (4.4 in)
2RD-28199-E1.book 1 ページ ２０１５年９月３日 木曜日 午後３時４２分