Suzuki FX125

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Suzuki FX125
2004 Suzuki FX125.jpg
Suzuki FX125
Manufacturer Suzuki
Also calledSuzuki FU125
Production2000 - present
Class Underbone
Engine Type 4 Stroke, DOHC, oil-cooled, generating 13.3 hp/ps(factory claimed)
Transmission 5 speed manual
Brakes Front: Front disc, four piston caliper
Rear: drum
Fuel capacity4.6 L
Related Suzuki FXR150 and Suzuki Raider 150

The Suzuki FX125 is an underbone motorcycle manufactured in Malaysia from 1998, with a powerful four-stroke engine. It was sold mostly in Malaysia and Vietnam, and in small numbers in New Zealand and Greece.

Contents

It uses a five-speed 125 cc (7.6 cu in) DOHC four-valve single-cylinder engine. This engine is of the same design as the 150 cc (9.2 cu in) engine which powers the Suzuki FXR150 sports bike and another underbone, the Suzuki Raider 150. The engine features Suzuki Advanced Cooling System, in which oil as well as air is used to cool the engine. To cool the oil, the engine is fitted with an external oil cooler.

Unlike the FXR150 and Raider 150, which have a six-speed manual transmission, the FX125 and Raider 125 engines have a five-speed short gear ratio manual transmission. The frame, rear suspension, seat, front wheel and front brakes are identical to that of the Raider 150. Other features include rear monoshock rear suspension, lightweight chassis construction, 17-inch alloy cast wheels (or, on some FX125s, spoked wheels) and a front disc brake, most of which are rarely found in underbones. The dash unit has an analogue speedometer and indicator lights for the turn signal, high beam, top gear and neutral.

A Suzuki FX125 with covers removed 2004 Suzuki FX125 with no covers.jpg
A Suzuki FX125 with covers removed

Technical data

DIMENSIONS
Overall length1955 mm
Overall width680 mm
Overall height1080 mm
EngineSpecification
Engine typeAir - Oil Cooled, DOHC 4-Valve, 4-Stroke
Bore × stroke57.0 × 48.8 mm
CarburetorMIKUNI BS26SS
Displacement124.5 cc
Compression ratio10.2 : 1
Starting systemKick and electric
Maximum horsepower13.3 hp @ 10,500 RPM
Lubrication systemSACS (Suzuki Advanced Cooling System)
Fuel tank capacity4.2 L
Fuel consumption3.0 Lt/100 km
Chassis and suspension
ChassisTwin-Spar Underbone
Suspension, FrontTelescopic Coil Spring, Oil-damped Fork x 2
Suspension, RearMono Shock, Coil Spring, Oil-damped w/preload adjustment
Brakes - FrontDisc brake w/twin piston caliper
Brakes - RearDrum brake

References