Yamaha YZ 85 LW - 2006 Specifications and Reviews

The 2006 Yamaha YZ 85 LW is a lightweight motocross bike designed for young or beginner riders seeking an accessible entry point into competitive off-road racing. Its compact 85cc V-twin engine delivers manageable power with a five-speed transmission, while liquid cooling and carbureted fuel system ensure reliable performance on the track. This model is best known for providing approachable handling and control for developing riders learning fundamental motocross skills.

5 stars Average rating: 5 from 1 votes
.

General information

CategoryCross / motocross
Year2006
ModelYamaha YZ 85 LW
 
 

Engine and Transmission Specifications

ClutchWet, multiple-disc
Transmission typefinal driveChain
Gearbox5-speed
Cooling systemLiquid
Lubrication systemPremix
StarterKick
IgnitionCDI
Fuel systemCarburettor. Mikuni TMX38
Bore x stroke47.5 x 47.8 mm (1.9 x 1.9 inches)
Compression8.2:1
Stroke4
Engine typeV2
Capacity:84.70 ccm (5.17 cubic inches)

Physical measures and capacities

Wheelbase1,255 mm (49.4 inches)
Ground clearance351 mm (13.8 inches)
Overall width758 mm (29.8 inches)
Overall length1,818 mm (71.6 inches)
Overall height1,161 mm (45.7 inches)
Seat height864 mm (34.0 inches) If adjustable, lowest setting.
Dry weight66.0 kg (145.5 pounds)
 
 

Yamaha YZ 85 LW dimensions and frame

Rear brakes diameter146 mm (5.7 inches)
Rear brakesSingle disc
Front brakes diameter220 mm (8.7 inches)
Front brakesSingle disc
Rear tyre dimensions90/90-M14
Front tyre dimensions70/90-M17
Rear suspension travel125 mm (4.9 inches)
Rear suspensionSwinging arm (monocross)
Front suspension travel275 mm (10.8 inches)
Front suspensionTelescopic fork

Speed and acceleration

Fuel capacity8.00 litres (2.11 gallons)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track70%
City5%
Cornering80%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a youth/small-adult competition motocross bike best suited to developing riders with prior dirt bike experience, not beginners on two wheels in general.
PurposeBuilt purely for motocross racing on closed off-road tracks, note this is the larger-wheel (LW) variant aimed at bigger junior riders stepping up before a full-size bike.
Rider FitIts low seat height and light dry weight make it manageable for smaller or lighter riders, but the firm racing suspension and kick start demand decent physical fitness and technique.
CharacterA high-revving, agile, purpose-built racer that rewards aggressive, committed riding and rapid direction changes over jumps and berms.
Not Ideal ForThis is not suitable for road use, commuting, touring, carrying a passenger, or riders looking for a comfortable, low-maintenance everyday machine.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2006 Yamaha YZ 85 LW Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 864mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2006 Yamaha YZ 85 LW, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

Find bikes that fit your height →

Rider Reviews

Add a Comment


Please Login or Register if you would like to leave a comment.