2003 TTR-90

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Engine 89cc, Air-cooled, SOHC, 4-stroke single

Displacement 89cc

Bore x Stroke 47 X 51.8mm

Compression Ratio 8.5:1

Carburetion 16mm Mikuni

Fuel Capacity 1.1 gal.

Ignition CDI

Transmission 3-speed w/automatic clutch

Final Drive Chain

Brakes Front: 95mm Drum
Rear: 110mm Drum

Tires Front: 2.50-14
Rear: 3.00-12

Suspension Front: Telescopic Fork, 4.3 in. travel
Rear: Single Shock, 3.7 in. travel

Team Yamaha Blue/White