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Yamaha YZ 80 1993 - 2001
YZ 80 (2001)
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Motocross / Yamaha
Yamaha YZ 80 1993 - 2001

Yamaha YZ 80 1990-1992

Yamaha launched their first 80cc motocross motorbike back in 1974. The YZ80 was inspired by its big sisters with 125 and 250 cc and was upgraded several times in the course of its history before it became an 85 cc machine in 2002. From twin shock absorbers to cantilever to monoshock absorbers on linkage, from air to liquid cooling, from drum to disc brakes - year after year, the YZ80 adopted the improvements of the entire MX model range. These developments led to an extremely mature machine as early as 1993, the basis of which (engine and main frame) was retained on the 85 cc models until 2018 due to their continued success.

The Yamaha YZ 80 is a motocross motorcycle for young riders between 1.30 m and 1.65 m tall. The Yamaha YZ 80 is a motorcycle designed for off-road use. It is not street legal and is intended exclusively for use on closed off-road race tracks.

With its slim, agile and relatively powerful engine, the Yamaha YZ 80 is also suitable for motocross beginners, even if it was developed more for experienced riders.

80 YZ: Engine

  • Single-cylinder 2-stroke engine
  • Liquid-cooled 0.5 l
  • Displacement: 82.9 cc
  • Bore x stroke: 47 x 47.8mm
  • Play cylinder / piston: 0,040 - 0,045
  • Carburetor: Mikuni VM26
  • Main jet: 300
  • Pilot jet: #32.5
  • Clutch: Multi-plate clutch, mechanically operated
  • Gearbox: 6-speed manual
  • Gear oil: SAE 10W30 (0.5 l)
  • Gear ratio: 14x47
  • Power at the crankshaft: 28 hp

YZ 80: Chassis

  • Frame: Steel frame with semi double cradle
  • Fork: Kayaba inverted fork 36mm
  • Front suspension travel: 275mm
  • Shock absorber: Kayaba Monocross 
  • Suspension travel: 282mm
  • Front brake: 220mm disk
  • Rear brake: 190mm disk
  • Front tire: 70/100-17 ; 70/100-19
  • Rear tire: 90/100-14 ; 90/100-16
  • Seat height: 854mm (small wheels) ; 890mm (big wheels)
  • Clearance: 347mm / 389mm
  • Weight, fully fueled: 71 / 73,9 kg
  • 5L tank

Yamaha YZ80 in our store:

In our online store you will find a large selection of spare parts for Yamaha YZ 80.
For regular maintenance and minor repairs, we have engine oil, gear oil, spark plugs, levers and brake pads.
For larger projects, we have pistons, crankshafts, gearbox bearings and clutches for the engine, as well as fork seals, linkage bearings and other suspension parts.
For racing drivers, we can also supply tuning parts such as exhausts, reed valves, oversize brake kits or holeshot kits and other performance-enhancing parts.
For racing drivers, we can also supply tuning parts such as exhausts, reed valve blocks, oversize brake kits or holeshot kits and other performance-enhancing parts.

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