Yamaha Yz 450 F
The Yamaha Yz 450 F has a top speed of ~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain), produces ~62 hp and weighs 110 kg. Motoryk rates it 8.5/10.
雅马哈 YZ450F 作为 YZ426F 的演变版于 2003 年推出，配备了更紧凑、更精致的 450cc 四冲程越野摩托车发动机。多年来，它经历了重大的重新设计，最值得注意的是在 2010 年采用了反缸发动机布局，并在 2018 年进行了电启动和启动控制，巩固了其作为最先进的工厂摩托车越野摩托车之一的声誉。它曾多次参加过AMA超级越野赛和摩托车越野锦标赛，使其成为450cc摩托车越野赛的基准。
~62 hp
权力
~52 Nm
扭矩
110 kg
重量
~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain)
最高速度
Estimate: ~6-8 L/100km under typical motocross/off-road riding conditions (note: highly variable depending on riding intensity; not designed for road use)
燃料
裸体
身体
Video Review
买家应该知道什么
Reverse Cylinder Engine
The YZ450F features a unique reverse-inclined engine layout that centralizes mass for sharper handling. This design is rare in motocross and gives it a distinct performance edge over competitors.
Watch the Valves
Valve clearance checks are critical on the YZ450F and should be inspected every 15-20 hours of riding. Neglected valve maintenance is the most common cause of costly engine damage on used examples.
Strong Resale Value
The YZ450F consistently holds its value better than most motocross bikes, largely due to Yamaha's reputation for reliability. A well-maintained example can retain 60-70% of its value after two years.
按年份划分的世代和规格
作为 YZ426F 的继任者推出；449cc 发动机，铝制车架，强劲的动力输送。
"原始的、惩罚性的、精彩的——如果你能应付的话。"
雅马哈用这个东西向课堂投下了炸弹 —— 比 426 轻，更快速，如果你不注意的话，命中后会重新排列你的填充物。铝制车架改变了操控性；它实际上是转向而不是耕作，在硬包装上，它确实令人自信。但是那把能量传递是一把双刃剑：从中档到高端，它会在零警告的情况下爆炸，如果你是一名 B 级车手或者还在锻炼自己的排骨，它会比你眨眼的速度更快。维护成本也是真实存在的——阀门需要每隔几天检查一次，忽略这一点很快就会变得昂贵。
优点
缺点
修订的气缸盖、新的排气系统、更新的悬架设置、改进的油门响应和操控性。
"这一代最终使 YZ450F 成为一个完整软件包。"
雅马哈通过改进的车头和新的排气系统解决了第一代臭名昭著的快速动力传输，区别是真实的——这款自行车在弯道中不会出现过去用来换后转弯的刺耳撞击。在潮湿的重量为 110 kg 时，它仍然感觉在波涛汹涌的制动颠簸中停滞不前，而且更新后的悬架设置比其前身的僵硬的、仅限比赛的设置更适合更多的车手。座椅高度说实话 — 985 mm 高，身材矮小的骑手在低速路段会感觉到这一点。我唯一的抱怨是，油门在前三分之一时仍然有一种略带木头的感觉，如果你不在喷气机的顶部冲向高度，它在长摩托车上可能会倾斜而炎热地运行。
优点
缺点
新的前倾式发动机布局、燃油喷射就绪的设计、改进的底盘、更轻的总重量。
引入了燃油喷射，向后倾式发动机，新框架，后来增加了电启动选项。
改进的车架、新的KYB悬架、更新的燃油喷射、改进的质量集中和人体工程学。
完全重新设计；全新车架、发动机、车身、起飞控制、安装在车把上的功率调谐器连接器。
修改了动力输送、更新了悬架、新的座椅泡沫、牵引力控制和多种动力模式。
新框架、修订的发动机内部结构、更新的车身、改进的功率调谐器应用程序连接和电子设备。
二手买家评论
"An unforgiving elite machine that rewards experienced, mechanically-aware riders only."
$4,500-$7,500 usedThe YZ450F is a proper weapon, and buying one used means someone else already paid the depreciation hit. That said, this thing will find you out fast — it's not a beginner's machine or a casual trail bike. The power delivery is aggressive and front-heavy, demanding respect from the first throttle crack. Check the hours meter religiously and assume whoever owned it before you rode the hell out of it, because they probably did. Mechanically, Yamaha's engine is impressively bulletproof if the maintenance schedule was followed. That's your biggest gamble with used — has the piston been replaced around the 80-100 hour mark? Ask for receipts. Suspension linkages wear fast under aggressive riders, and revalving costs money. Post-2018 models with the reverse-cylinder layout are noticeably better balanced and worth hunting for specifically. The electric start on later models is genuinely useful and not a gimmick. Budget realistically. Whatever you pay for the bike, add another $500-800 for consumables, a fresh piston, and suspension refresh. Go in with eyes open and this bike will absolutely deliver.
Top 10 Accessories
Curated picks for the Yamaha Yz 450 F — owned, ridden, recommended.
常见问题
🔥 2 CRITICALCold start difficulty, ticking noise, compression test
Inspect rear subframe welds and alignment visually
Oil streaks on fork legs, soft or clunky feel
Pull dipstick, dark sludgy oil, ask service history
✅购买前清单
Reliable if maintained, punishing if neglected
Full Specifications
Rivals & Alternatives
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Discussion
Frequently Asked Questions
What are common problems with the Yamaha Yz 450 F? +
Valve clearance wear from hard use: Cold start difficulty, ticking noise, compression test (serious) | Bent or cracked subframe from crashes: Inspect rear subframe welds and alignment visually (moderate) | Worn fork seals and suspension components: Oil streaks on fork legs, soft or clunky feel (moderate)
Is the Yamaha Yz 450 F a good motorcycle? +
An unforgiving elite machine that rewards experienced, mechanically-aware riders only. Rating: 8.5/10. Best for: Experienced motocross racers wanting proven performance value. Avoid if: You're new to high-displacement motocross bikes.
What is the horsepower of the Yamaha Yz 450 F? +
The Yamaha Yz 450 F produces ~62 hp @ 9,500 rpm (note: figure based on modern 2020+ models; earlier models ranged 55-60 hp), with ~52 Nm @ 7,500 rpm (note: estimated based on published dyno data for recent models) of torque. Top speed: ~145 km/h (note: estimated under optimal conditions on a straight; varies by rider and terrain).
Is the Yamaha Yz 450 F good for beginners? +
Not really — the Yamaha Yz 450 F is better for experienced riders (62950020205560 hp can be intimidating). Experienced motocross racers wanting proven performance value Avoid if: You're new to high-displacement motocross bikes
Is the Yamaha Yz 450 F reliable? +
Owners report 2 critical issues to watch for on the Yamaha Yz 450 F, notably: Valve clearance wear from hard use (Cold start difficulty, ticking noise, compression test). Buy with a pre-purchase inspection.
Is the Yamaha Yz 450 F good for daily use? +
Experienced motocross racers wanting proven performance value Fuel: Estimate: ~6-8 L/100km under typical motocross/off-road riding conditions (note: highly variable depending on riding intensity; not designed for road use).
