Yamaha Yfz 450 motorcycles for sale in Oregon

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2016 Yamaha YFZ450R

2016 Yamaha YFZ450R

$7,499

Hillsboro, Oregon

Year 2016

Make Yamaha

Model YFZ450R

Category Atvs

Engine -

Posted Over 1 Month

2016 Yamaha YFZ450R, Like new! A great way to save some change and get a great quad! 2016 Yamaha YFZ450R TRACK, TRAIL AND PODIUM READY The most technologically advanced sport ATV available. Period. Features May Include: Race-Ready EngineThe 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 FrameThe 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 BodyworkBodywork 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; there s no need to remove the battery or other components to take the fenders off.Advanced Cylinder HeadThe 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 InjectionThe 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 ClutchThe 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. ATVs are recommended only for use by those age 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.

2017 Yamaha YFZ450R

2017 Yamaha YFZ450R

$8,499

Hood River, Oregon

Year 2017

Make Yamaha

Model YFZ450R

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R, Only 1 at this price! Dont miss out! 2017 Yamaha YFZ450R YOUR PODIUM AWAITS The YFZ450R is the ultimate moto-dominating, podium-topping pure sport ATV package. Features may include: Race-Ready EngineThe YFZ450R is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again.Advanced FrameThe 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 BodyworkBodywork 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; there s no need to remove the battery or other components to take the fenders off.Advanced Cylinder HeadThe 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 InjectionThe 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 ClutchAn 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. "ATVs & UTVs are recommended only for use by 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."

2017 Yamaha YFZ450R SE

2017 Yamaha YFZ450R SE

Request Price

Fairview, Oregon

Year 2017

Make Yamaha

Model YFZ450R SE

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R SE, 2017 Yamaha YFZ450R SE SENSATIONALLY SINISTER The pure sport YFZ450R SE is both understated and flashy with a bold, impressive color and graphics package. Features may include: Race-Ready EngineThe YFZ450R SE is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again.Advanced FrameThe YFZ450R SE 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 BodyworkBodywork 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; there s no need to remove the battery or other components to take the fenders off.Advanced Cylinder HeadThe 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 InjectionThe 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 ClutchAn 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.Aggressive SE StyleAggressive styling gives the YFZ450R SE a dark and racy look, with extras like a GYTR® front grab bar to match its unique graphics package. "ATVs & UTVs are recommended only for use by 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."

2016 Yamaha YFZ450R SE

2016 Yamaha YFZ450R SE

Request Price

Fairview, Oregon

Year 2016

Make Yamaha

Model YFZ450R SE

Category Atvs

Engine -

Posted Over 1 Month

2016 Yamaha YFZ450R SE, 2016 Yamaha YFZ450R SE PODIUM TOPPING TRADITION The YFZ450R SE stands out with its stunning 60th anniversary heritage racing color and graphic scheme. Features May Include: Race-Ready EngineThe 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 FrameThe 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 SE StyleBodywork 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 HeadThe 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 InjectionThe 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 ClutchThe 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. ATVs are recommended only for use by those age 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.

2017 Yamaha YFZ450R SE

2017 Yamaha YFZ450R SE

$9,299

Happy Valley, Oregon

Year 2017

Make Yamaha

Model YFZ450R SE

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R SE, 2017 Yamaha YFZ450R SE SENSATIONALLY SINISTER The pure sport YFZ450R SE is both understated and flashy with a bold, impressive color and graphics package. Features may include: Race-Ready Engine The YFZ450R SE is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again. Advanced Frame The YFZ450R SE 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; there s no need to remove the battery or other components to take the fenders off. 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 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. 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. ATVs are recommended only for use by those age 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.

2017 Yamaha YFZ-450R

2017 Yamaha YFZ-450R

$8,999

Bend, Oregon

Year 2017

Make Yamaha

Model YFZ-450R

Category Atvs

Engine -

Posted Over 1 Month

2017 YAMAHA YFZ-450R, We are a Credit Union Direct Lender offering many options for finance. Our vehicles are safety inspected and most qualify for extended service contracts. Our professional staff is here to help you with all your buying needs. Give us a call to set up an appointment or come into our showroom for more information. You can also visit our website at . COPY THE LINE BELOW INTO YOUR URL FOR FINANCING!!! s:// /financing.htmWE PAY TOP DOLLAR FOR PRE-OWNED MOTORCYCLES, ATV'S, SIDE BY SIDES, AND WATERCRAFT!!!!!!!!!!UNIT DISCLAIMER* Price shown is net price after any factory to customer rebates and does not include Applicable taxes, documentation, destination and assembly fees. Used and adult Dirt bikes have NO freight or setup charges.

2017 Yamaha YFZ-450R SE

2017 Yamaha YFZ-450R SE

$9,299

Bend, Oregon

Year 2017

Make Yamaha

Model YFZ-450R SE

Category Atvs

Engine -

Posted Over 1 Month

2017 YAMAHA YFZ-450R SE, We are a Credit Union Direct Lender offering many options for finance. Our vehicles are safety inspected and most qualify for extended service contracts. Our professional staff is here to help you with all your buying needs. Give us a call to set up an appointment or come into our showroom for more information. You can also visit our website at www.procaliberbend.com . COPY THE LINE BELOW INTO YOUR URL FOR FINANCING!!!https://s17965.endeavorsecure.com/financing.htmWE PAY TOP DOLLAR FOR PRE-OWNED MOTORCYCLES, ATV'S, SIDE BY SIDES, AND WATERCRAFT!!!!!!!!!!UNIT DISCLAIMER* Price shown is net price after any factory to customer rebates and does not include applicable taxes, documentation, destination and assembly fees. Used and adult dirtbikes have NO freight or setup charges.

2008 Yamaha YFZ 450

2008 Yamaha YFZ 450

$2,000

Portland, Oregon

Year 2008

Make Yamaha

Model YFZ 450

Category Atvs

Engine -

Posted Over 1 Month

2008 Yamaha YFZ 450 . Adult owned and ridden, Never Raced. Has always been stored in the garage and only ridden occasionally. Runs great, plastics do have some scratches, but in overall great shape.

2017 Yamaha YFZ450R

2017 Yamaha YFZ450R

$8,999

Happy Valley, Oregon

Year 2017

Make Yamaha

Model YFZ450R

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R, 2017 Yamaha YFZ450R YOUR PODIUM AWAITS The YFZ450R is the ultimate moto-dominating, podium-topping pure sport ATV package. Features may include: Race-Ready Engine The YFZ450R is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes 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; there s no need to remove the battery or other components to take the fenders off. 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 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. ATVs are recommended only for use by those age 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.

2013 Yamaha YFZ450 R

2013 Yamaha YFZ450 R

$5,699

Tigard, Oregon

Year 2013

Make Yamaha

Model YFZ450 R

Category Atvs

Engine -

Posted Over 1 Month

2013 Yamaha YFZ450 R, Sand dunner... 2013 Yamaha® YFZ®450R The Top Of The Podium Awaits The 2013 Yamaha YFZ®450R is an ATV motocross racing machine. Since handling is one of the key ingredients of winning a race, the 2013 YFZ®450R comes with a weldless aluminium frame with a tensile steel bottom part for a lowered center of gravity and more stability. Even more, thanks to the ProTaper 4-way adjustable handlebars, riders can choose the best stance to suit their riding style and thus max out the performance. The racing-spec titanium valve 449cc engine has been tuned to deliver low-to-midrange grunt for powerful acceleration during slow corners and plenty of torque to tackle obstacles.

2006 Yamaha YFZ 450 SE

2006 Yamaha YFZ 450 SE

$5,999

Sublimity, Oregon

Year 2006

Make Yamaha

Model YFZ 450 SE

Category Atvs

Engine -

Posted Over 1 Month

2006 Yamaha YFZ 450 SE, CALL 503-769-8888

2017 Yamaha YFZ450R

2017 Yamaha YFZ450R

$8,999

Sublimity, Oregon

Year 2017

Make Yamaha

Model YFZ450R

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R, 2017 Yamaha YFZ450R YOUR PODIUM AWAITS The YFZ450R is the ultimate moto-dominating, podium-topping pure sport ATV package. Features may include: Race-Ready Engine The YFZ450R is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes 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; there s no need to remove the battery or other components to take the fenders off. 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 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. ATVs are recommended only for use by those age 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.

2009 Yamaha YFZ450R

2009 Yamaha YFZ450R

$5,999

Sublimity, Oregon

Year 2009

Make Yamaha

Model YFZ450R

Category Atvs

Engine -

Posted Over 1 Month

2009 Yamaha YFZ450R, CALL 503-769-8888 2009 Yamaha YFZ450R Key Features: In ATV motocross, great power output doesn t mean much without superior handling. YFZ450R delivers! Nearly three inches wider overall than the YFZ450, the stance of this new 450R is motocross-ready. The frame is designed of lightweight aluminum, with a tension-steel bottom frame that lets the engine sit lower for excellent mass centralization. Suspension components have more travel carefully chosen for best performance, and the front shock bodies feature Kashima coating for even smoother operation. Fatigue can sometimes be a racer s worst competition. That s why the YFZ450R s designers made this ATV so comfortable. It s much roomier, with plenty of room to hang off in the corners, and the seat is padded just right to be more comfortable regardless of riding position. Handlebars are 4-position adjustable, too, so every rider can choose the best position, and the throttle has been designed for all day comfort. What s more, the engine balancer has been revised to even further reduce vibration. This 449cc engine uses the cylinder head and cylinder from the championship-winning YZ450 for awesome power output. That means titanium five-valve cylinder head technology, with a camshaft designed just for this machine to deliver abundant low to midrange torque for performance where you can really use it to take the lead while still maintaining a super strong top end to let you pull away from the pack. Features & Benefits: Engine: The fuel-injected 449cc engine uses the cylinder head andcylinder from the YZ450 for superb power characteristics. Powerdelivery is smooth and strong off the line with lots of low and midrange where you need it. As rpm climbs you ll find the same topend punch that has made the YFZ450 such a fierce competitorand class leader. The new crankcase holds the newly designed crankshaft that sready to handle the increased torque output, as well as thecounterbalancer that has an increased ratio for superior vibrationcontrol. The crankcase also houses the oil tank, which helps tocentralize mass for unmatched handling and makes maintenanceeasier. Chassis/Suspension: The chassis is very spacious, allowing room for an aggressiveracer to move around during the moto, and the ATV s body panelsthat the rider contacts during operation are of a special, softerplastic material for greater comfort. And the seat is narrow in thefront, yet wide and padded in the rear to provide a more comfortableride, even when hanging off on the side of the seat in a turn. Wheels are set motocross-spec wide, near the maximum allowable50 inches, for great cornering ability. Additional Features: The new throttle lever requires less effort, and it s very comfortable to use. That means less fatigue during all-day riding. The instrumentation is all bus

2017 Yamaha YFZ450R SE

2017 Yamaha YFZ450R SE

$9,299

Sublimity, Oregon

Year 2017

Make Yamaha

Model YFZ450R SE

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R SE, NO freight or set up fees. Call 503-769-8888 2017 Yamaha YFZ450R SE SENSATIONALLY SINISTER The pure sport YFZ450R SE is both understated and flashy with a bold, impressive color and graphics package. Features may include: Race-Ready Engine The YFZ450R SE is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again. Advanced Frame The YFZ450R SE 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; there s no need to remove the battery or other components to take the fenders off. 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 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. 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. ATVs are recommended only for use by those age 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.

2017 Yamaha YFZ450R SE

2017 Yamaha YFZ450R SE

$9,299

Cottage Grove, Oregon

Year 2017

Make Yamaha

Model YFZ450R SE

Category Atvs

Engine -

Posted Over 1 Month

2017 Yamaha YFZ450R SE, Price, may not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). Final actual sales price will vary depending on options or accessories selected. 2017 Yamaha YFZ450R SE SENSATIONALLY SINISTER The pure sport YFZ450R SE is both understated and flashy with a bold, impressive color and graphics package. Features may include: Race-Ready EngineThe YFZ450R SE is the most technologically advanced sport ATV on the market today. It combines a high-tech, quick-revving, titanium-valved, 449cc fuel-injected engine with a lightweight, professional-caliber cast aluminum/steel chassis. The power and chassis combination makes for a championship-winning machine time and time again.Advanced FrameThe YFZ450R SE 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 BodyworkBodywork 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; there s no need to remove the battery or other components to take the fenders off.Advanced Cylinder HeadThe 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 InjectionThe 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 ClutchAn 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.Aggressive SE StyleAggressive styling gives the YFZ450R SE a dark and racy look, with extras like a GYTR® front grab bar to match its unique graphics package. ATVs are recommended only for use by those age 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.