2003 Yamaha YZ125

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2003 Yamaha YZ125
2003 Yamaha YZ125


– 2003 Yamaha YZ125 Review

2003 Yamaha YZ125

Two Stroke Tour De Force…

So, just how good a machine is this? Well, roll out its ample collection of “Bike of the Year” awards and 125 Supercross titles, for starters. Then put an exclamation point on it with this bit of news: The 2003 Yamaha YZ125 is poised to raise the bar to even newer heights.

Commence in the engine room, where broader, more usable power and crisper throttle response is on tap across the rev range, thanks to reshaped exhaust porting and combustion chamber volume, a modified YPVS power valve, all-new reed-valve petals and revamped carb settings. And, like its YZ250 sibling, lighter, more responsive chassis performance comes via a lighter-weight swingarm and stiffer frame, revised fork and shock internals, light Excel rims, and lighter, stronger brakes.

2003 Yamaha YZ125 Features and Benefits



2003 Yamaha YZ125 – Specifications/Technical Details
USA MSRP Price: $4,999 USD
Canadian MSRP Price: See dealer for pricing in CDN

Length 84.0 in.

Height 51.9 in.

Width 32.6 in.

Weight 192 lbs.

Ground Clearance 15.7 in.

Wheelbase 56.6 in.

Seat Height 39.1 in.

Engine 124cc, liquid-cooled, reed valve-inducted, 2-stroke

Displacement 124cc

Bore x Stroke 54 X 54.5mm

Compression Ratio 8.7 – 11.0:1

Carburetion 38mm Mikuni TMX

Fuel Capacity 2.1 gal.

Ignition Digital CDI

Transmission 5-speed w/multi-plate wet clutch

Final Drive #520 chain

Brakes Front: 250mm floating disc
Rear: 245mm disc

Tires Front: 80/100-21 Dunlop
Rear: 100/90-19 Dunlop

Suspension Front: 46mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping; 11.8 ” travel
Rear: Fully adjustable Kayaba single shock, 12.4″ travel; separate hi/lo speed compression adjustment

Team Yamaha Blue/White

Specifications are subject to change without notice, in accordance with national regulation and legislations. Suggested Starting Price shown does not include tax, title, or destination charge. Dealer prices may vary.

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