Yamaha YP250R X-MAX 2005 Service Information page 20

Item
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
Air filter element
Fuel pump
Pump type
Model (manufacturer)
Output pressure
Ca rburettor
Model x qty.
Manufacturer
Needle jet
Main jet
Main air jet
Jet needle
ID mark
Guide air jet 1
Guide bolt rotations outwards
Valve seat size
Starter jet 1
Co %
Throttle cable free play (at the flange
of the throttle grip)
ENGINE SPECIFICATIONS
Standard
2,250 ~ 2,850 r/min
3,700 ~ 4,700 r/min
22.6 mm (0.89 in)
Helical gear
40 × 15 (2.666)
Helical gear
38 × 15 (2.533)
Dry, centrifugal automatic
V-belt automatic
Centrifugal automatic type
2.440 ~ 0.830:1
Wet element
Electrical
2GV (MITSUBISHI I )
12.5 kPa (0.13 kg/cm
CVEK30 x 1
KEIHIN
#2.6
#122
90
JPBL
1C0C00
#35
1- 7/8
1.6
38
4%
3 ~ 5 mm (0.12 ~ 0.20 in)
2 - 9
SPEC
, 1.85 psi)
2
Limit
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20.3 mm
(0.79 in)
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