Yamaha CygnusX - 2008 Specifications and Reviews

The 2008 Yamaha CygnusX is a 125cc automatic scooter designed for urban commuters seeking practicality and ease of use. Its fuel-injected single-cylinder engine delivers modest but reliable performance for city riding. Best known for its dependable automatic transmission and fuel efficiency, it suits riders prioritizing convenience and low maintenance over sportiness.

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General information

CategoryScooter
Year2008
ModelYamaha CygnusX
 
 

Engine and Transmission Specifications

GearboxAutomatic
Cooling systemAir
Lubrication systemWet sump
IgnitionTCI
Fuel controlSOHC
Fuel systemInjection. Fuel Injection System
Bore x stroke52.4 x 57.9 mm (2.1 x 2.3 inches)
Compression10.0:1
Torque9.30 Nm (0.9 kgf-m or 6.9 ft.lbs) @ 7500
Power10.72
Engine typeSingle cylinder, four-stroke
Capacity:125.00 ccm (7.63 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter150 mm (5.9 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter216 mm (8.5 inches)
Front brakesSingle disc
Rear tyre dimensions120/70-12
Front tyre dimensions110/70-12
Rear suspensionHydraulic unit swing
Front suspensionTelescopic fork
Frame type-

Physical measures and capacities

Fuel capacity7.10 litres (1.88 gallons)
Wheelbase1,295 mm (51.0 inches)
Ground clearance113 mm (4.4 inches)
Overall width685 mm (27.0 inches)
Overall length1,855 mm (73.0 inches)
Overall height1,130 mm (44.5 inches)
Seat height785 mm (30.9 inches) If adjustable, lowest setting.
Power/weight ratio0.0924 HP/kg
Dry weight116.0 kg (255.7 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric & kick

Performance Profile & Rider Fit

10.7 hp
Peak Power

Best For

Track5%
City90%
Cornering55%
Daily Riding85%
Touring20%
Passenger40%

Rider Profile

Best ForSuitable for beginners and anyone comfortable with an automatic twist-and-go scooter, requiring minimal riding skill.
PurposeDesigned primarily for short urban commuting and running errands rather than speed or long distance travel.
Rider FitVery lightweight and low seat height make it easy to manage for riders of almost any size or strength.
CharacterA practical, nimble little scooter that prioritizes efficiency and ease of use over excitement or performance.
Not Ideal ForNot suitable for highway travel, long-distance touring, carrying a passenger comfortably, or riders seeking real performance.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2008 Yamaha CygnusX Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 785mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2008 Yamaha CygnusX, with a moderate knee angle of around 100 degrees and a slightly forward riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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