2021 Yamaha YZ85 Guide

2021 Yamaha YZ85

2021 Yamaha YZ85 2021 Yamaha YZ85 2021 Yamaha YZ85

2021 Yamaha YZ85 : VICTORY: NEVER GIVEN, ALWAYS EARNED.

2021 Yamaha YZ85:

Step up to the perfect bike and earn victory after victory aboard this lightweight, 2‑stroke that boasts reliability and agility.

The latest-generation YZ85 has been built to dominate the 85 cc class. Featuring the Yamaha Power Valve System (YPVS), fully-adjustable suspension, six-speed transmission and adjustable ergonomics, the 2020 YZ85 is ready to win races straight off the dealership floor.

The YZ85 is a legend in the youth motocross scene. It’s the bike that inspired many of today’s top professional racers and helped them on their path to MX glory. And with its punchy performance, the YZ85 is the dirt bike that can turn young riders’ dreams into reality.

Victory. Never given, always earned.
The 85cc liquid-cooled 2-stroke engine comes with a Yamaha Power Valve System (YPVS) that delivers a wide spread of explosive power – giving genuine advantage over the competition.

And with fully adjustable forks, wave-type front and rear discs and adaptable ergonomics, the YZ85 has the technology to launch riders all the way to the top. Plus its sharp styling and factory-inspired graphics show the world you’re serious about winning.

At a glance

  • 85cc liquid cooled 2-stroke engine with YPVS
  • Plastic resin reed valve and an expansion chamber
  • Fully adjustable 36-mm KYB® upside down front forks
  • Wave discs and brake hoses
  • 4-position adjustable tapered aluminium handlebars
  • Aluminium swingarm for easy chain adjustment
  • Link-type Monocross rear suspension
  • Sharp styling and factory inspired graphics
  • Light and efficient large core radiator
  • Impact resistant fork guards
  • Close ratio 6-speed transmission

Victory. Never given, Always Earned.

The high-tech YZ85 gives ample power and control. Its 85cc liquid cooled 2-stroke engine comes with the
legendary Yamaha Power Valve System (YPVS) for harder hitting performance and torque.

The high e ciency reed valve intake and exhaust systems give instant power at the twist of a wrist – and
with its powerful brakes and adjustable ergonomics, the YZ85 is ready to raise your game.

The front forks and Monocross rear suspension systems enable riders to translate the strong engine
performance into lower lap times. And its sharp styling and factory-inspired graphics show the world you’re serious about winning.

 

 

2021 Yamaha YZ85 Totalmotorcycle.com Key Features
  • YPVS™ Two-Stroke Power
    The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm.
  • Fully-Adjustable Suspension
    Lightweight 36mm KYB® inverted cartridge fork features low-friction outer tubes, plenty of travel and external compression and rebound damping adjustability, mated to a race-proven fully-adjustable rear shock.
  • High-Spec Wheels and Brakes
    Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance while the big 220mm and 190mm disc brakes offer precise control and feature Dunlop® MX3S® knobbies for exceptional traction.
  • Adjustable Rider Ergonomics
    The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the ergonomics to suit their size and preferences.

 

Yamaha Announces Full Lineup of 2021 Motocross Bikes
Race like a Champion with Yamaha’s Redesigned YZ250F and Monster Energy® Yamaha Racing Editions

Yamaha Motor Corporation, USA, introduces its complete lineup of race-ready 2021 motocross bikes including the updated YZ250F. Featuring a thoroughly refined engine, revised frame, new suspension settings and new brakes, the YZ250F continues to dominate the competition with the best balance of power and handling.

“The YZ250F is clearly the leader in its class, winning back-to-back Monster Energy AMA Supercross West Coast 250SX Championships, dominating media shootouts year after year, and by offering industry-exclusive features like the free Power Tuner app, which allows riders to wirelessly tune engine performance for changing track conditions,” said Derek Brooks, Yamaha Motorsports Motorcycle Product Line Manager. “For 2021 the YZ250F gets significant engine, frame, suspension and brake updates to deliver more class-leading power and offer a superior balance of nimble yet confidence-inspiring handling. Yamaha’s entire 2021 motocross lineup continues to raise the bar of competitive performance.”

Also new for 2021, the YZ250F and YZ450F will be offered in special Monster Energy Yamaha Racing Editions, pairing Yamaha’s legendary YZ performance with a new, race team-inspired aesthetic.

In addition to the updated YZ250F and the Monster Energy Racing Edition models, the full two-stroke lineup consisting of the YZ65, YZ85, YZ125 and YZ250, as well as the four-stroke YZ450F, all return for 2021 with the next-generation Team Yamaha Blue color and graphics scheme to further accentuate the advances of the YZ series.

Welcome to the victorYZone
Yamaha’s off-road competition bikes offer the very latest in technology with performance features designed to help racing enthusiasts reach their maximum potential, win races, and stand on top of the podium.

New 2021 YZ250F: Tune, Race, Win
The new 2021 Yamaha YZ85 has been redesigned for a more competitive, greater performing motocross experience. The new 250cc, liquid-cooled, four-stroke, electric start engine features an all-new cylinder head with an improved intake port shape and new camshaft profile, as well a new airbox and intake track, a new silencer, and an updated ECU. These modifications, along with other refinements like an updated transmission and shift cam, a revised clutch design and improved water pump impeller, all help to produce stronger mid- to top-end power and increased peak power, while retaining its class-leading low-end torque.

Tuned specifically for the 2021 YZ250F, the updated lightweight aluminum, bilateral beam frame, and new engine mounts have been redesigned with all-new flex characteristics to improve bump absorption, traction, and cornering performance. The industry-leading, fully adjustable KYB® coil spring-type fork, with enhanced speed-sensitive damping, provides an exceptional balance between comfort and bottoming resistance while the link-type rear suspension features a KYB shock with revised damping characteristics to match the updated chassis. Other chassis components such as the top triple clamp, handlebar mounts, and front axle were also redesigned to complement the new frame. Improved braking performance is achieved with newly engineered lighter weight front and rear brake calipers, larger surface area brake pads, and redesigned front (270mm) and rear (240mm) discs.

The 2021 YZ250F gives racers the edge right out of the gate. Standard equipment includes electric start, a lightweight lithium battery, advanced fuel injection, a front-positioned intake, and rear-positioned exhaust layout to deliver the widest spread of power with reliable performance while balancing the weight for excellent mass-centralization. Racers can adjust their engine performance straight from their phone using the onboard wireless connectivity through the industry’s only free-of-charge complete tuning system, which is highlighted by the Yamaha Power Tuner App. Once settings are dialed in, racers can then choose between two user-defined ECU maps on the fly via the handlebar mounted dual-mode engine map switch. Complemented by new next-generation Team Yamaha Blue color and graphics, the 2021 YZ250F showcases Yamaha’s race-winning pedigree.

New for 2021: Monster Energy Yamaha Racing Editions
Stand out from the crowd. The 2021 YZ250F and 2021 YZ450F now come in new Monster Energy Yamaha Racing Editions. With a factory team-inspired color and graphics package, riders can feel as if they too are part of a Yamaha championship-winning Supercross team.

2021 YZ450F: Tune into Victory
The 2021 YZ450F returns with all of the class-leading features first introduced on the 2020 YZ450F, including an updated engine, cylinder head, frame and technology features for a more powerful and better handling motocross experience. Racers can achieve quicker, smoother race starts through Yamaha’s Launch Control System, adjust their on-track performance using the onboard wireless connectivity through the free-of-charge Yamaha Power Tuner App right from their phone, and choose between two user-defined ECU maps on the fly through the handlebar-mounted dual-mode engine map switch.

2021 YZ125 and YZ250
Yamaha’s YZ125 and YZ250 models return for 2021 to complete Yamaha’s full-size lineup of motocross bikes. With their modern styling, lightweight aluminum frame and industry-leading KYB Speed Sensitive System front forks and KYB fully-adjustable rear shock, the 2021 YZ125 and YZ250 continue their outstanding performance and durability with a rider-friendly chassis and race-ready features.

2021 YZ65 and YZ85
The 2021 youth models are once again ready to tackle the track. The YZ65 and YZ85 are powered by confidence-inspiring 65cc and 85cc two-stroke engines. Featuring the Yamaha Power Valve System, these engines deliver a broad spread of power and torque across the entire rev range, without losing any power at high RPM. Fully adjustable, industry-leading 36mm KYB spring type forks and KYB rear shock contribute to class-leading handling and performance in a wide range of conditions. Four-way, adjustable handlebar positioning, as well as lever-reach adjustability are designed for ultimate rider comfort, regardless of size. Finally, with two-stroke ease of maintenance and Yamaha’s proven durability, the 2021 YZ65 and YZ85 are built to keep kids on the track.

Yamaha bLU cRU Off-Road Racing Contingency Program
All 2021 YZ models are eligible for Yamaha’s current 2020 bLU cRU Off-Road Racing Contingency Program, which features nearly $5 million for Yamaha bLU cRU riders competing in off-road motorcycle racing. YZ riders can earn contingency payouts via a bLU cRU debit card, receive a 10 percent rebate on GYTR parts and accessory purchases of up to $1,000, and receive an instant $45 credit.

 

 

 

2021 Yamaha YZ85 Totalmotorcycle.com Features and Benefits
  • Potent YPVS Two-Stroke Engine
    The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System for broad, tractable power across the rev range without losing peak power at high rpm—improving driveability and reducing the need for frequent shifting.
  • Tuned Crankcase and Intake
    The crankcase design features a spacer-style reed valve intake for improved gas flow, which inhales through a 28mm Keihin® flat-slide carburetor for seamless throttle response.
  • Tuned Expansion Chamber
    Carefully matched to suit the YPVS engine, the exhaust expansion chamber optimizes gas flow for enhanced power delivery, especially in the low- and mid-range.
  • Durable Transmission
    The transmission features oversized gears to provide enhanced gear engagement and smoother shifts.
  • High Capacity Radiator
    Lightweight radiator has large cores and louvers, and the water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.
  • High-Flow Airbox
    Airbox design ensures excellent air cleaning performance and easy maintenance.
  • Fully-Adjustable Fork
    The lightweight 36mm KYB® inverted cartridge fork features 10.8 inches of travel with compression and rebound damping adjustability. Complete with low-friction outer tubes and internals, the damping settings offer enhanced performance across a range of conditions and rider abilities.
  • Fully-Adjustable Shock
    Rear suspension features fully adjustable Kayaba® link-type shock with 11.1 inches of travel and race-tested compression valving. The progressive linkage-type design improves bottoming resistance, allowing racers to charge harder and improve lap times.
  • Refined Swingarm Design
    The YZ85’s modern swingarm features a composite chain guide as well as push-style chain adjusters, just like the YZ125, for easier maintenance.
  • Lightweight Subframe
    Compact rear subframe is removable for simplified servicing.
  • Large-Diameter Brakes
    Big wave-style brake discs offer improved self-cleaning and cooler-running performance. The 220mm front disc and 190mm rear disc deliver strong, precise stopping power.
  • Lightweight Wheels
    Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance.
  • High Performance Tires
    Dunlop® MX3S® knobbies provide exceptional traction on a variety of tracks and terrain.

Adjustable Rider Ergonomics
The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the handlebar position to suit their size and preferences. The flat fuel tank, side panels and rear fender provide generous freedom of movement.

 

 

2021 Yamaha YZ85 – Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $4699 USD
Canada MSRP Price: Starting at $6,099 CDN
Europe/UK MSRP Price: £ See Dealer GBP (On The Road inc 20% Vat)

Engine Type 85cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke 47.5mm x 47.8mm
Compression Ratio 8.2~9.6:1
Fuel Delivery Keihin® PWK28 carburetor
Transmission 6-speed; multiplate wet clutch
Final Drive Chain
Suspension / Front Inverted fork; fully adjustable, 10.8-in travel
Suspension / Rear Single shock; fully adjustable, 11.1-in travel
Brakes / Front Hydraulic disc, 220mm
Brakes / Rear Hydraulic disc, 190mm
Tires / Front 70/100-17 Dunlop® MX3S
®
Tires / Rear 90/100-14 Dunlop® MX3S
®
L x W x H 71.7 in x 29.9 in x 45.1 in
Seat Height 33.1 in
Wheelbase 49.4 in
Rake (Caster Angle) 26.3°
Trail 3.5 in
Maximum Ground
Clearance
13.0 in
Fuel Capacity 1.3 gal
Wet Weight 161 lb
Warranty 30 Day (Limited Factory Warranty)
Color Team Yamaha Blue

 

 

2021 Yamaha YZ85 – Totalmotorcycle.com Canada Specifications/Technical Details

ENGINE

ENGINE 2-stroke, liquid-cooled, crankcase-reed-valve single with YPVS
DISPLACEMENT 85cc
BORE AND STROKE 47.5 x 47.8 mm
COMPRESSION RATIO 8.2-9.6:1
FUEL DELIVERY Keihin PWK38
IGNITION / STARTING CDI / Kick
TRANSMISSION Constant mesh, 6-speed
FINAL DRIVE Chain

 

CHASSIS

SUSPENSION (FRONT) Fully adjustable KYB 36 mm inverted fork / 275 mm (10.8 in) wheel travel
SUSPENSION (REAR) Fully adjustable KYB shock / 282 mm (11.1 in) wheel travel
BRAKES (FRONT) 220 mm disc / twin-piston caliper
BRAKES (REAR) 190 mm disc / single-piston caliper
TIRES (FRONT) 70/100-17
TIRES (REAR) 90/100-14

 

CRITICAL DATA

LENGTH 1,820 mm (71.7 in)
WIDTH 760 mm (29.9 in)
HEIGHT 1145 mm (45.1 in)
WHEELBASE 1255 mm (49.4 in)
GROUND CLEARANCE 330 mm (13 in)
SEAT HEIGHT 840 mm (33.1 in)
FUEL CAPACITY 5 litres (1.1 imp. gal.)
WET WEIGHT 73 kg (161 lb)
COLOUR(S) Yamaha Racing Blue

 

2021 Yamaha YZ85 – Totalmotorcycle.com European Specifications/Technical Details

Engine
Engine type Single cylinder;2-stroke;liquid-cooled;reed valve
Displacement 84.7cc
Bore x stroke 47.5 mm x 47.8 mm
Compression ratio 8.1 : 1
Lubrication system Premix
Clutch Type Wet;multiple-disc coil spring
Ignition system CDI
Starter system Kick
Transmission system Constant Mesh;6-speed
Final transmission Chain
Carburettor Keihin PWK28/1
Chassis
Frame Semi double cradle
Caster Angle 27º
Trail 106mm
Front suspension system Upside-down telescopic fork
Rear suspension system Swingarm;(link suspension)
Front travel 275 mm
Rear Travel 287 mm
Front brake Single Disc, Ø220 mm
Rear brake Single Disc, Ø190 mm
Front tyre 70/100-19 42M
Rear tyre 90/100-16 52M
Dimensions
Overall length 1,903 mm
Overall width 758 mm
Overall height 1,156 mm
Seat height 904 mm
Wheel base 1,286 mm
Minimum ground clearance 393 mm
Wet weight (including full oil and fuel tank) 73 kg
Fuel tank capacity 5.0litres
Oil tank capacity 0.5litres

 

Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).

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