2024 Yamaha YZ85LW

Description

GO BIG- Same YZ85 power, same YZ85 fun, and now with a large wheel package, allowing riders to bridge the gap to the next class. Featuring the Yamaha Power Valve System (YPVS), fully-adjustable suspension, six-speed transmission and adjustable ergonomics, the YZ85LW is ready to win races straight off the dealership floor.

Key Features

• Features a larger 19-inch front wheel and 16-inch rear wheel

• A longer swingarm accommodates the larger rear wheel and increases handling stability

• Improved rider ergonomics with a narrower tank, flatter seat and slimmer, symmetrical shrouds offering greater freedom of movement

• New Air Intake Design

• Yamaha Power Valve System (YPVS) for broad, tractable 

• Potent, easy-to-service two-stroke engine 

• Smooth-shifting, six-speed, close-ratio transmission 

• Compact, semi-double-cradle, single-backbone steel frame 

• Race-ready, fully adjustable suspension 

• Aggressive YZ styling

Engine

• Lightweight, compact, 85 cc, liquid-cooled, crankcase reed-valve inducted, 2-stroke single. 

• New Air Intake Design

• Updated intake design allows for a straighter, more efficient draw of air into the intake tract.

• Tuned Expansion Chamber

• Carefully matched to suit the YPVS™-equipped engine, the exhaust expansion chamber optimizes gas flow for enhanced power delivery, especially in the low- and mid-range.

• Yamaha Power Valve System (YPVS).

• Mechanical power valve system delivers effective exhaust timing throughout the entire rev range

• Provides excellent power and torque characteristics

• Boosts compression ratio and power output

• Delivers responsive acceleration just as the rider intends

• Slit-shaped valve on the side of the exhaust port operates in response to engine rpm

• In low-to-mid-rpm range when exhaust timing is slower, valve moves to cover the top part of the exhaust port

• In high rpm range when quick exhaust timing is needed, valve recedes and exhaust port is fully uncovered

• Shifting is reduced due to broad powerband

• The crankcase design features a spacer-style reed valve intake for improved air/fuel flow

• Which inhales through a 28mm Hitachi Astemo® Keihin flat-slide carburetor for seamless throttle response.

• Lightweight, forged piston. 

• less reciprocating mass and less friction for a faster revving engine

• excellent durability

• CDI ignition system. 

• provides a hot, precise spark for fast sure starts

• provides optimal timing for quicker, stronger response at all rpms

• maintenance-free

• Smooth-shifting, six-speed transmission. 

• involute design increases the surface area contact between the gears

• special involute splines on main and drive shafts provide maximum engagement/hook-up for each gear for smoother, more positive shifts

• gear ratios are well matched to engine output

• Gear dimensions optimized for YPVS engine performance

• Heavy-duty, multi-plate clutch. 

• smooth positive shifting

• Quick-remove, clutch sub-cover. 

• fast, easy clutch access

• Lightweight radiator with high-capacity cores and special louvers to direct the air through the rad. 

• maximum cooling efficiency

• Large-capacity airbox with washable, dual-stage, foam filter. 

• excellent filtering qualities
  reduced expenses

• Lightweight exhaust system.

• expansion chamber designed to match the output of YPVS engine

• aluminum silencer is re-packable to maintain optimum performance and reduced noise levels

Chassis/Suspension

• The new YZ85 has been enhanced in several key chassis areas to optimize strength, rigidity and overall handling stability including the main frame, swingarm and rear wheel axle. 

• Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance.

• Rigid, semi-double cradle, single backbone, steel frame. 

• blend of lightweight and good strength

• minimal flex for razor-sharp, moto-winning handling

• Detachable rear subframe. 

• allows easy access for suspension maintenance

• reduces costs in the event of a loop-out (subframe can be purchased separately)

• Lightweight box-section aluminum swingarm.

• composite chain guide and updated chain adjusters provide easier maintenance

• provides excellent rear-wheel control and traction

• Adjustable 36 mm inverted KYB fork with 275 mm (10.8 in) of wheel travel. 

• low-friction outer tubes and internals are similar to full-size YZ models

• 20 clicks of both compression and rebound damping

• adjustable design allows suspension settings to match rider weight, rider style and track conditions

• YZ125 / 250-based "big bike" valving and low-friction fork seals

• smooth, compliant stroke for superior suspension performance and handling

• front fork guard redesigned with brake hose outside of fork guard

• Fully adjustable Monocross link rear suspension provides 282 mm (11.1 in) of wheel travel. 

• Kayaba piggyback shock reduces shock temperatures during a long moto for fade resistant damping and consistent performance.

• adjustments include "threaded" spring preload, 15 clicks of compression and 20 clicks of rebound damping

• optional shock springs are available through Yamaha Genuine Parts and Accessories

• 220 mm front stainless steel wave front disc with twin-piston caliper. 

• delivers strong stopping power with excellent control and great feedback.

• Tapered aluminum handlebar and adjustable crown.

• Tapered handlebar

• "Shorty-style" adjustable front brake lever. 

• adjusts to fit various hand sizes

• Clutch lever holder allows for clutch lever reach adjustment. 

• adjusts to fit various hand sizes.

• 190 mm stainless steel rear disc brake squeezed by a single piston caliper. 

• Excellent stopping power

• caliper is protected by a rugged plastic protector

• Lightweight, blue 19-inch front and 16-inch rear DID rims.

• excellent durability

• reduces unsprung weight for optimal suspension performance

• Dunlop MX3S knobby tires offer exceptional traction

• Modern, aggressive, slim line bodywork. 

• slim body design for excellent freedom of movement and rider mobility

Details

• The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the handlebar position to suit their size and preferences.

• New flat seat and narrow fuel tank design, along with smoothly integrated body panels and slimmer shroud width, combine to enable greater freedom of movement for increased control and confidence.

• Sealed tapered steering head bearings for extra durability

• Serrated rear brake pedal and folding shift lever tip

• Wide, cast-alloy serrated footpegs offer good grip

• Stainless steel inner clutch cable for longer life and smooth operation

• Rubber boots on clutch and brake levers to reduce dirt, mud and water entry for durability

• Convenient lifting holes in side cover

• New rugged chain guide helps prevent chain from derailing and also protects rear sprocket

• E10 friendly fuel system components