Yamaha 2004 YP400 Service Manual page 39

Item
Automatic centrifugal clutch
Clutch shoe thickness
Clutch shoe spring free length
Clutch housing inside diameter
Compression spring free length
Weight outside diameter
Clutch-in revolution
Clutch-stall revolution
V-belt
V-belt width
Transmission
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Clutch type
Transmission type
Operation
Single speed automatic
Air filter type
Fuel pump
Pump type
Model (manufacturer)
Output pressure
Throttle body
Throttle cable free play (at the flange
of the throttle grip)
ID mark
ENGINE SPECIFICATIONS
Standard
4.0 mm (0.16 in)
34.7 mm (1.37 in)
160 mm (6.30 in)
103.5 mm (4.075 in)
25 mm (0.98 in)
2,100 ~ 2,700 r/min
4,000 ~ 5,000 r/min
30 mm (1.18 in)
Helical gear
31/14 (2.214)
Helical gear
42/16 (2.625)
Dry, centrifugal automatic
V-belt automatic
Centrifugal automatic type
2.380 ~ 0.892:1
Wet element
Electrical
5RU (AISAN)
250 kPa (2.5 kg/cm
3 ~ 5 mm (0.12 ~ 0.20 in)
5RU 00
2 - 9
SPEC
2
, 35.6 psi)
Limit
2.5 mm
(0.10 in)
----
160.5 mm
(6.30 in)
91 mm
(3.58 in)
24.5 mm
(0.96 in)
----
----
27 mm
(1.06 in)
----
----
----
----
----
----
----
----
----
----
----
----
----
----