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81 YZ80H Specifications

Model

YZ 80 H

 

Year

1981

 81-YZ80-H

Frame/Engine Prefix   (XXX-000101)

4V1

Engine Type

2 stroke

Bore (mm)

49

Stroke (mm)

42

Capacity (cc)

79

Compression Ratio (to 1)

7.1

Bhp @ rpm

 

Model Notes

Torque (kgm) @ rpm

 

Pictures only show one year on multi-year bikes. Check VIN tables for colors for your specific year.

Oil System

Premix

Engine Cooling

Air

Carburetor (mm)

VM24SS

Ignition System

CDI

Ignition Timing (mm)

0.8

Primary drive gearing

3.58

Final Drive Gearing

44/13

Box Gearing first

2.77

Box Gearing second

2.06

Box Gearing third

1.63

Box Gearing fourth

1.33

Box Gearing fifth

1.15

Box Gearing sixth

1.04

Fuel Cap. (liters)

4.6

Engine Oil Cap. (liters)

 

Gearbox Oil Cap. (Liters)

0.75

Fork Oil Ca. (cc/leg)

 

Front Tire (stock)

2.75-17

Rear Tire (stock)

4.10-14

Front Brake

SLS DRUM

Rear Brake

SLS DRUM

Rear Suspension

Monoshock

Front Susp. Travel (mm)

215

Rear Susp. Travel (mm)

205

Rake (degrees)

27

Trail (mm)

84

Width (mm)

765

Ground Clearance (mm)

255

Wheelbase (mm)

1205

 

Dry Weight (kg)

60

   
   

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