2017 Yamaha YFZ450R SE

$9,299.00


Availability
Brochure
Year
2017
Manufacturer
Yamaha
Model
YFZ450R SE

Overview

Description

Sensationally Sinister



The pure sport YFZ450R SE is both understated and flashy with a bold, impressive color and graphics package.

Top Features
  • Race-Ready Engine: The YFZ450R is the most technologically advanced sport ATV on the market today. It is simply the top of the line “racing” level Sport ATV. It combines a high-tech, quick-revving, titanium five-valve, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power/chassis combination will make for a championship-winning machine time and time again.
  • Advanced Frame: The YFZ450R is motocross ready. The weldless frame is designed from lightweight aluminum, with a tension-steel bottom frame that lets the engine sit lower for excellent mass centralization. Suspension components and settings reduce weight while providing light, sharp handling and rider comfort.
  • Aggressive Bodywork: Bodywork is designed for great ergonomics and rider comfort, with more room to hang off in the corners, and the seat shape is padded in just the right places to improve lap times. Body panels come off easily without tools for service, and a dealer-installed GYTR® grab bar highlights the unique SE graphics package.
  • Advanced Cylinder Head: The 449cc engine uses titanium five-valve cylinder head technology designed to deliver abundant power in the mid-range to top end, with more “hit” feeling right off idle. The higher compression ratio further improves overall engine performance.
  • Fuel Injection: The YFZ450R incorporates Yamaha Fuel Injection for precise fuel delivery. With a big 42mm Mikuni® throttle body and 12-hole injector, this system provides exceptional atomization of the fuel for maximum power. The system also includes ISC (Idle Speed Control) for easy, reliable start-up and warming.
  • Assist and Slipper Clutch: The industry’s first assist and slipper clutch on a Sport ATV reduces clutch lever effort by about 25% for less fatigue while at the same time increasing clutch plate pressure for positive engagement. Additionally, this new clutch system reduces the engine braking effect, which allows faster cornering, particularly when downshifting, and also allows the suspension to absorb bumps better during braking.
  • Aggressive SE Style: Aggressive styling gives the YFZ450R SE a dark and racy look, with extras like a GYTR® front grab bar to match its unique graphics package.
Engine Features
  • Powerful Motor: The fuel-injected 449cc engine has superb power characteristics. Power delivery is smooth and strong off the line with lots of midrange to top-end power.
  • Advanced Cylinder Head: The 449cc engine uses a five-valve cylinder head and titanium valve technology designed to deliver abundant power in the mid-range to top end, with more "hit" feeling right off idle. The high compression ratio further improves overall engine performance.
  • Fuel Injection: The YFZ450R SE incorporates Yamaha Fuel Injection for precise fuel delivery. With a big 42mm Mikuni® throttle body and 12-hole injector, this system provides exceptional atomization of the fuel for maximum power. The system also includes ISC (Idle Speed Control) for easy, reliable start-up and warming.
  • Assist and Slipper Clutch: An assist-and-slipper clutch reduces clutch lever effort for less fatigue while at the same time increasing clutch plate pressure for positive engagement. This clutch system also reduces engine braking effect, which allows faster cornering, particularly when downshifting.
  • Compact Counterbalanced Engine: The crankcase holds a crankshaft that’s ready to handle the increased demands of the racer, as well as a counterbalancer to reduce vibration. The crankcase also houses the oil tank, which helps to centralize mass for unmatched handling while making maintenance easier.
  • Tuned Camshafts: Camshafts have been revised to help maximize the engine’s impressive power output from off the line all the way up to the top end.
Chassis/Suspension
  • Race-Ready Ergonomics: The body configuration allows more room for the racer to move around during the moto. The seat is narrow in the front, yet wide and padded in the rear to reduce fatigue.
  • Durable, Rigid Wheels: The wheels have been designed with the inner lip rolled in. This increases the rigidity, allowing a reduction in weight while maintaining strength.
  • Wide Track and Maxxis® Tires: Wheels are set motocross-spec wide, near the maximum allowable 50 inches, for great cornering speed. Maxxis® tires help provide excellent handling and control. At 20 inches in the rear and 21 inches in the front, they provide better ground clearance than the competition.
  • Adjustable Handlebar: Large diameter, tapered handlebar reduces vibration and are mounted on 4-way clamps for exceptional adjustability. The two sets of holes in the handlebar crown and the eccentric clamps allow a rider to choose the standard setting, 10mm or 20mm forward, or 10mm back.
  • Wide Footpegs: Foot pegs are a generous 2.6 inches wide, something riders will appreciate every time they want to get up on the pegs.
  • Advanced Frame: The frame is a combination of aluminum and steel for light weight. The frame member under the engine is steel, used for its combination of strength and low profile. This allows the engine to sit lower overall for excellent mass centralization for unmatched handling. The aluminum frame is bolted together, rather than welded, for maximum durability.
  • Long A-Arm Suspension: The front frame is as narrow as possible at the A-arm mounting points. This increases the A-arm length and reduces changes in camber as the suspension travels through its full range of motion.
  • High-Performance Shocks: The front KYB® shocks are longer for increased stroke with superb bump absorption and excellent anti-bottoming characteristics, and they have Kashima™ coating for smooth operation. 9.8 inches of wheel travel means this racer is up to even the most challenging tracks.
  • Swingarm Rear Suspension: The rear swingarm is crafted of strong, gravity-fed aluminum, and is matched to a fully adjustable 46mm KYB® piggyback shock for excellent handling. Rear wheel travel is 11.0 inches for comfort even on tough terrain.
Additional Features
  • Aggressive SE Style: Aggressive styling gives the YFZ450R SE a dark and racy look, with extras like a GYTR® front grab bar to match its unique graphics package.
  • Light Throttle Action: The throttle lever requires low effort for less fatigue during long motos.
  • Compact LED Indicators: The discrete panel on the fender in front of the rider gives vital indicators about low fuel, coolant temperature, check engine, and neutral gear via an LED display.
Engine
  • Engine Type: 449cc liquid-cooled DOHC 4-stroke; 5 titanium valves
  • Bore x Stroke: 95.0mm x 63.4mm
  • Compression Ratio: 11.8:1
  • Fuel Delivery: Yamaha Fuel injection (YFI), 42mm
  • Ignition: TCI: Transistor Controlled Ignition
  • Transmission: 5-speed; assist and slipper clutch
  • Final Drive: O-ring chain
Chassis
  • Suspension / Front: Independent double wishbone w/Kashima coated piggyback shocks; high/low speed compression, rebound and threaded preload adjustment, 9.8-in travel
  • Suspension / Rear: Cast aluminum swingarm w/piggyback shocks; high/low speed compression, rebound and threaded preload adjustment, 11.0-in travel
  • Brakes / Front: Dual hydraulic disc
  • Brakes / Rear: Wave-style hydraulic disc
  • Tires / Front: AT21 x 7-10 Maxxis®
  • Tires / Rear: AT20 x 10-9 Maxxis®
Dimensions
  • L x W x H: 70.7 in. x 48.8 in. x 41.9 in.
  • Seat Height: 31.9 in.
  • Wheelbase: 50.0 in.
  • Ground Clearance: 9.3 in.
  • Fuel Capacity: 2.6 gal.
  • Wet Weight: 405 lb.
Other
  • Warranty: 6 Month (Limited Factory Warranty)
NOTES:
Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models. ATVs are recommended for those aged 16 years and older. Yamaha recommends an approved training course. See your dealer or call 1-800-887-2887. ATVs can be hazardous to operate.

Specs

Engine

Engine Type
DOHC 4-stroke; 5 titanium valves
Displacement
449cc
Bore x Stroke
95.0mm x 63.4mm
Engine Cooling
Liquid
Fuel System
Yamaha Fuel injection (YFI), 42mm
Starting System
Electric

Chassis

Front Suspension
Independent double wishbone w/Kashima coated piggyback shocks; high/low speed compression, rebound and threaded preload adjustment
Front Travel
9.8 in.
Front Brake Type
Dual hydraulic disc
Front Tires
AT21 x 7-10 Maxxis®
Rear Suspension
Cast aluminum swingarm w/piggyback shocks; high/low speed compression, rebound and threaded preload adjustment
Rear Travel
11 in.
Rear Brake Type
Wave-style hydraulic disc
Rear Tires
AT20 x 10-9 Maxxis®

Dimensions/Capacities

Dry Weight
Curb Weight: 405 lb.
Fuel Capacity
2.6 gal.
Ground Clearance
9.3 in.
Machine Dimensions (LxWxH)
70.7 in. x 48.8 in. x 41.9 in.
Wheelbase
50.0 in.

Drive Train

Final Drive
O-ring chain
Transmission
5-speed; assist and slipper clutch

General

Colors
Black Metallic
Warranty
6 Month (Limited Factory Warranty)

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