Engineering:Yamaha YZF-R3

From HandWiki
Yamaha YZF-R3
5-YZF R3 2021.jpg
ManufacturerYamaha Motor Company
Parent companyYamaha Corporation
Production2015–present
AssemblyIndonesia: Karawang, West Java (Yamaha Indonesia Motor Manufacturing)
Brazil: Guarulhos, São Paulo (Yamaha Motor da Amazônia) (since 2022)
ClassSport bike
Engine320.3 cc (19.55 cu in) liquid-cooled 4-stroke 8-valve DOHC 180° inline-twin
Bore / stroke68.0 mm × 44.1 mm (2.68 in × 1.74 in)
Compression ratio11.2:1
Top speed181 km/h (112 mph) (Estimated)[1] 166 km/h (103 mph)[2]
Power31 kW (42 hp) @ 10,750 rpm (claimed)[3] 27.4 kW (36.7 hp) @ 10,750 rpm (rear wheel)[2]
Torque21.8 lb⋅ft (29.6 N⋅m) @ 9,000 rpm (claimed)[3] 19.8 lb⋅ft (26.8 N⋅m) @ 9,100 rpm (rear wheel)[2]
Transmission6-speed constant mesh
Frame typeSteel diamond
SuspensionFront: 41 mm telescopic fork
Rear: swingarm
BrakesFront: Single 298 mm hydraulic disc
Rear: Single 220 mm hydraulic disc
TiresFront: 110/70-17H
Rear: 140/70-17H
Rake, trail25°, 95 mm (3.7 in)
DimensionsL: 2,090 mm (82 in)
W: 720 mm (28 in)
H: 1,135 mm (44.7 in)
Seat height780 mm (31 in)
Weight167 kg (368 lb)[4] (wet)
Fuel capacity14.0 L (3.1 imp gal; 3.7 US gal)
Oil capacity2.1–2.4 L (2.2–2.5 US qt)
Fuel consumption4.2–4.9 L/100 km; 67–58 mpg‑imp (56–48 mpg‑US)[5][6]
RelatedYamaha MT-03
Yamaha YZF-R25

The Yamaha YZF-R3, commonly R3, is a 321 cc (19.6 cu in) inline-twin sport bike made by Yamaha since 2015. The R3 and the R25 are the first Yamaha twins with an offset cylinder design.[7]

The YZF-R3 was updated for 2019.[8]

Design

The Yamaha R3 is an entry level sport motorcycle in the same range as other 250–400 cc motorcycles like the Kawasaki Ninja 300, Honda CBR300R, and KTM 390 series.[9][6] It has some design similarity to the R25, such as the engine.[10][11][9] The engine uses a downdraft induction fuel injection system, and the 10-spoke cast aluminum wheels reduce unsprung weight[compared to?].[12] The cylinders are all-aluminum. For 2017, the YZF-R3 offers optional ABS.[11][9] The 2018 Model has dual channel ABS and is EURO IV compliant.[13]

Performance

The 2015 R3 has a braking distance of 40 meters from 100-0 kph. According to some reviewers, the braking system is not powerful enough to match the engine power, and is also prone to fishtailing under hard braking (non ABS).[9][14]

References

  1. Hinton, TJ (November 1, 2016). "2015 – 2017 Yamaha YZF-R3". TopSpeed. http://www.topspeed.com/motorcycles/motorcycle-reviews/yamaha/2015-2017-yamaha-yzf-r3-ar166012.html//. 
  2. 2.0 2.1 2.2 Canet, Don (May 18, 2015). "Four Sub-400cc Entry-Level Sportbikes – Comparison Test". Cycle World. http://www.cycleworld.com/2015/05/18/page-6/%7C//. 
  3. 3.0 3.1 Hodgson, Kris (June 1, 2016). "2015 Yamaha YZF-R3 Review". Bikereview.com.au. http://bikereview.com.au/2016-yamaha-yzf-r3///. 
  4. Montano, Thomas (March 20, 2015). "2015 Yamaha YZF-R3 – FIRST RIDE REVIEW". Cycle World. http://www.cycleworld.com/2015/03/20/2015-yamaha-yzf-r3-sportbike-motorcycle-review-first-ride-photos-specifications//. 
  5. "2017 Yamaha YZF-R3 Review | 12 Fast Facts" (in en-US). Ultimate Motorcycling. 2017-06-13. https://ultimatemotorcycling.com/2017/06/13/2017-yamaha-yzf-r3-review-12-fast-facts/. 
  6. 6.0 6.1 "2015 Yamaha R3 Comparison" (in en-US). Motorcycle USA. http://www.motorcycle-usa.com/2015/05/article/2015-yamaha-r3-comparison/. 
  7. Shields, Matthew (May 22, 2015). "Review: 2015 Yamaha YZF-R3". CycleOnline.com.au. http://www.cycleonline.com.au/2015/05/22/review-2015-yamaha-yzf-r3///. 
  8. "New Yamaha YZF-R3 brings MotoGP aggression to the A2 class" (in en). 2018-10-10. https://www.motorcyclenews.com/news/new-bikes/yamaha-yzf-r3-motogp-aggression/. 
  9. 9.0 9.1 9.2 9.3 "Yamaha R3 Review- Pros, Cons, Specs & Ratings" (in en-US). BestBeginnerMotorcycles. 2017-01-31. https://www.bestbeginnermotorcycles.com/yamaha-r3-review/. 
  10. Ved, Ravi (August 11, 2015). "Yamaha YZF 3 – 7 things to know!". https://www.zigwheels.com/news-features/news/yamaha-yzfr3-7-things-to-know/22755/. 
  11. 11.0 11.1 "2017 Yamaha YZF-R3 Review | 12 Fast Facts" (in en-US). Ultimate Motorcycling. 2017-06-13. https://ultimatemotorcycling.com/2017/06/13/2017-yamaha-yzf-r3-review-12-fast-facts/. 
  12. "2017 Yamaha YZF-R3 Supersport Motorcycle – Photo Gallery, Video, Specs, Features, Offers, Inventory and more". https://www.yamahamotorsports.com/supersport/models/yzf-r3. 
  13. "2018 Yamaha R3 BS-IV launch, price, deliveries, details, specifications, engine, design and more – Autocar India" (in en). https://www.autocarindia.com/bike-news/2018-yamaha-r3-launched-at-rs-348-lakh-407296. 
  14. "Yamaha YZF-R3: 4,000km Long Term Review". ZigWheels.com. https://www.zigwheels.com/reviews-advice/reviews/yamaha-r3-4000km-long-term-report/25273/. 

External links