Yamaha YFZ-450R SE
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| Yamaha YFZ-450R SE | |
| Manufacturer | |
|---|---|
| Production | 2015 - 2017 |
| Class | ATV |
| Engine | Liquid-cooled DOHC 4-stroke, 5 titanium valves |
| Bore / Stroke | 94.0mm x 94.0mm |
| Compression ratio | 11.8:1 |
| Transmission | Gear box: 5-Speed Final Drive: O-ring chain, 2WD |
| Suspension | Front: Independent double wishbone w/Kashima coated piggyback shocks, high/low speed compression, rebound and threaded preload adjustment, 9.8-in travel 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 Rear: Wave-style hydraulic disc |
| Front Tire | AT21 x 7-10 Maxxis |
| Rear Tire | AT20 x 10-9 Maxxis |
| Wheelbase | 50.0 inches (1270 mm) |
| Length | 70.71 inches (1796 mm) |
| Width | 48.82 inches (1240 mm) |
| Seat Height | 31.89 inches (810 mm) |
| Weight | 184.0 kg (wet) |
| Recommended Oil | Yamalube 10w-40 |
| Manuals | Service Manual |
The Yamaha YFZ-450R SE was a Liquid-cooled DOHC 4-stroke, 5 titanium valves ATV produced by Yamaha between 2015 and 2017.
Engine[edit | edit source]
A 94.0mm bore x 94.0mm stroke result in a displacement of just 449.0 cubic centimeters.
Drive[edit | edit source]
The bike has a 5-Speed transmission. Power was moderated via the Slipper clutch.
Chassis[edit | edit source]
It came with a AT21 x 7-10 Maxxis front tire and a AT20 x 10-9 Maxxis rear tire. Stopping was achieved via Dual hydraulic disc in the front and a Wave-style hydraulic disc in the rear. The front suspension was a Independent double wishbone w/Kashima coated piggyback shocks, high/low speed compression, rebound and threaded preload adjustment, 9.8-in travel while the rear was equipped with a Cast aluminum swingarm w/piggyback shocks, high/low speed compression, rebound and threaded preload adjustment, 11.0-in travel. The wheelbase was 50.0 inches (1270 mm) long.
2015 Yamaha YFZ-450R SE[edit | edit source]
The YFZ-450R 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, agile handling characteristics with an excellent balance of sharp handling and rider comfort. The YFZ-450R 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.
2017 Yamaha YFZ-450R SE[edit | edit source]
The YFZ-450R 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.
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.