Yamaha Yz450f
The Yamaha Yz450f has a top speed of Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), produces Approximately 60–63 hp and weighs 110 kg. Motoryk rates it 8.5/10.
雅马哈 YZ450F 于 2003 年推出，是 YZ400F/426F 系列的演变，它用强大的四冲程越野摩托车取代了二冲程时代。它在2010年进行了具有里程碑意义的重新设计，采用了反向气缸盖和前向排气系统，并于2018年再次采用了电动起动和智能手机可调燃油喷射系统。它一直是450cc级别中赢得比赛最多、技术最先进的摩托车越野摩托车之一，曾多次获得AMA超级越野赛和摩托车越野锦标赛。
Approximately 60–63 hp
权力
Approximately 53–55 Nm
扭矩
110 kg
重量
Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure)
最高速度
Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike)
燃料
裸体
身体
Video Review
买家应该知道什么
Reverse Cylinder Reliability
The YZ450F's unique reverse-inclined cylinder design lowers the center of gravity and improves mass centralization. This layout has proven highly durable, but valve clearances should be checked every 15 hours to avoid costly engine wear.
Built-In Bluetooth Tuning
2018 and newer models include a Bluetooth-enabled Power Tuner app, letting riders adjust fuel maps and engine braking without a dealer visit. This feature adds real value and is rare among competitors in its class.
Strong Resale Value
The YZ450F consistently holds its value better than most motocross bikes, often retaining 70–80% of its price after one year with proper maintenance. Low-hour, well-documented bikes are especially sought after in the used market.
按年份划分的世代和规格
作为 YZ426F 的 450cc 继任者推出，五气门发动机，铝制车架，强劲的动力输送。
"原始的暴力力量可以奖励承诺，但会惩罚犹豫不决。"
第 1 代 YZ450F 本质上是雅马哈向 450 级投掷一枚手榴弹。2003 年，那台五气门发动机的撞击力度比 2003 年生产线上的任何其他发动机都要大，其中端到高端的冲击力会让你站起来，如果你不注意的话，会把你吐出来。我在 04 年度过了整整一个赛季，学会了遵守油门；越野骑行确实很粗略，因为命中率太突然了，但是在一个气势恰当的开放的 MX 赛道上，却让人陶醉。铝制框架在旧的 YZ426 钢制底盘上大放异彩——在拐角处更清晰、反应更灵敏，但在崎岖的地形上，它还能将所有岩石和树根直接传送到你的手中。在他们整理热启动电路之前，起步仪式很挑剔，对于体重超过 175 磅的人来说，悬架需要立即恢复气门，除非你喜欢像弹球一样从每一个方边碰撞中反弹。
优点
缺点
改进的四气门发动机、新的车架几何结构、改进的悬架、更轻的总重量和更好的操控性。
"更锋利、更轻、更卑鄙——雅马哈终于做对了。"
第 2 代 YZ450F 感觉就像雅马哈真的听了赛车手抱怨第一代车的前端模糊不清——修改后的几何结构让前轮充满信心地穿过车辙，而且 DOHC 电机在慢速转弯时的撞击力比同类产品中的任何其他发动机都要大。我在 2007 年的车型上跑了整整一个赛季，虽然悬架对较轻的车手来说很僵硬，但当我的本田车友被撞倒时，在艰难的环境中却保持了镇定。如果你懒得拿离合器，动力传输足够突然，足以让你在光滑的硬背包上脱颖而出——这不是一辆宽容的自行车，它需要尊重和精确的奖励。保养间隔很短，如果你跳过气门检查，发动机会用比碰撞更刺痛的账单提醒你。
优点
缺点
反向气缸发动机布局，2010 年推出的燃油喷射系统，向后倾斜的气缸提高了质量集中度。
新的铝制双边梁框架，改进的悬架连杆，更新的燃油喷射，2016 年增加了电动起动装置。
完全重新设计的底盘、新的发动机内部、启动控制、牵引力控制、功率调谐器应用程序连接。
改进的发动机油门、新的排气系统、更新的悬架设置、精致的人体工程学设计和改进的过弯性能。
二手买家评论
"Brilliant but unforgiving — buy smart or get burned fast."
$3,500-$7,500 usedThe YZ450F is arguably the most capable production motocrosser ever built, but buying one used demands serious homework. Yamaha's reverse-cylinder layout and fuel injection transformed the platform from 2010 onward, making those bikes genuinely desirable secondhand. The engine is a weapon — savage, front-wheel-lifting power that'll expose any gaps in your skill set within the first corner. That's both the appeal and the warning label. Here's the honest part nobody tells you: these bikes get absolutely flogged. Check the frame for cracks near the steering head, inspect the linkage bearings, and demand maintenance records or budget another $800 for a full suspension refresh immediately. Hours on the engine matter enormously — a rebuilt top end every 30-40 hours is the factory recommendation, and plenty of previous owners ignored that cheerfully. Buy a well-documented 2014-2018 example from a disciplined intermediate rider over a cheap, mystery-history 2020. The YZ rewards mechanical diligence. Neglect it and it'll return the favor.
Top 10 Accessories
Curated picks for the Yamaha Yz450f — owned, ridden, recommended.
常见问题
🔥 2 CRITICALCompression test, ask about last valve adjustment date
Inspect fins and seams for cracks or coolant stains
Grab swingarm and wiggle for play or clunking
Pull airbox, inspect filter condition and engine hours
✅购买前清单
Reliable if maintained, punishing when neglected
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Yamaha Yz450f
Ktm Sx 450
Kawasaki Kx 450
Ktm Sx-f 450
Suzuki Rm-z 450
Yamaha Yz 450 F
Compare Yamaha Yz450f Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Yamaha Yz450f vs Ktm Sx 450
Specs · Power · Buyer verdict
Yamaha Yz450f vs Kawasaki Kx 450
Specs · Power · Buyer verdict
Yamaha Yz450f vs Ktm Sx-f 450
Specs · Power · Buyer verdict
Yamaha Yz450f vs Suzuki Rm-z 450
Specs · Power · Buyer verdict
Yamaha Yz450f vs Yamaha Yz 450 F
Specs · Power · Buyer verdict
More Yamaha Yz450f Guides
More from Yamaha
View all Yamaha models →Community Reviews
Discussion
Frequently Asked Questions
What are common problems with the Yamaha Yz450f? +
Worn valve seats causing hard starting: Compression test, ask about last valve adjustment date (serious) | Cracked or leaking radiators: Inspect fins and seams for cracks or coolant stains (moderate) | Worn rear linkage and swingarm bearings: Grab swingarm and wiggle for play or clunking (moderate)
Is the Yamaha Yz450f a good motorcycle? +
Brilliant but unforgiving — buy smart or get burned fast. Rating: 8.5/10. Best for: Experienced motocrossers who maintain bikes religiously. Avoid if: Beginners or riders skipping routine maintenance schedules.
What is the horsepower of the Yamaha Yz450f? +
The Yamaha Yz450f produces Approximately 60–63 hp @ 9,500 rpm (varies by model year; 2020+ models produce near the upper end), with Approximately 53–55 Nm @ 8,000 rpm (estimate; Yamaha does not officially publish torque figures for this model) of torque. Top speed: Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure).
Is the Yamaha Yz450f good for beginners? +
Not really — the Yamaha Yz450f is better for experienced riders. Experienced motocrossers who maintain bikes religiously Avoid if: Beginners or riders skipping routine maintenance schedules
Is the Yamaha Yz450f reliable? +
Owners report 2 critical issues to watch for on the Yamaha Yz450f, notably: Worn valve seats causing hard starting (Compression test, ask about last valve adjustment date). Buy with a pre-purchase inspection.
Is the Yamaha Yz450f good for daily use? +
Experienced motocrossers who maintain bikes religiously Fuel: Estimated 6–8 L/100km under typical motocross/off-road use (note: highly variable depending on riding intensity; no official road consumption figure exists for this competition-focused bike).
How fast is the Yamaha Yz450f? +
The Yamaha Yz450f reaches a top speed of Approximately 145–155 km/h (estimate based on dyno and track testing; not an officially published figure), producing 60 hp at 110 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Yamaha Yz450f? +
Motoryk has curated a Top 10 gear list specifically for the Yamaha Yz450f, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/yamaha/yz450f/top10. Each pick is matched to this bike's spec.
