Cannabis Indica

Content deleted Content added
67.193.110.71 (talk)
72.71.116.152 (talk)
Line 171: Line 171:
*[http://www.kawasaki.com/Products/detail.aspx?id=263 Official website]
*[http://www.kawasaki.com/Products/detail.aspx?id=263 Official website]
*[http://www.motorcyclenews.com/MCN/bikereviews/searchresults/Bike-Reviews/Kawasaki/Kawasaki-250R-Ninja-2008-current/ Kawasaki Ninja 250 Road test] Review of the 2008 Kawasaki Ninja 250
*[http://www.motorcyclenews.com/MCN/bikereviews/searchresults/Bike-Reviews/Kawasaki/Kawasaki-250R-Ninja-2008-current/ Kawasaki Ninja 250 Road test] Review of the 2008 Kawasaki Ninja 250
*[http://www.cyclepedia.com/kawasaki-ex250-ninja-250-online-service-guide/ Cyclepedia] Ninja 250 Online Help Module
*[http://faq.ninja250.org Ninja 250 Technical FAQ] on Ninja250.org
*[http://faq.ninja250.org Ninja 250 Technical FAQ] on Ninja250.org
*[http://www.amadirectlink.com/riding/reviews/2008/Ninja250R/index.asp AmericanMotorcyclist.com Article] 2008 Ninja 250R review from the AMA
*[http://www.amadirectlink.com/riding/reviews/2008/Ninja250R/index.asp AmericanMotorcyclist.com Article] 2008 Ninja 250R review from the AMA

Revision as of 02:18, 9 January 2009

Ninja 250R
2008 Ninja 250R
ManufacturerKawasaki
Also calledEX250, GPX250
Production1989 — present
ClassSport bike
Engine249 cc, 11.6:1 CR, liquid cooled, DOHC, parallel twin with twin Keihin CVK30
Top speed+/- Template:Auto mph
Power+/- 25 hp (19 kW)
Torque21.7 N⋅m (16.0 lb⋅ft) @ 10,000 rpm
Transmission6-speed
SuspensionFront: 37mm Hydraulic Telescopic Fork
Rear: Link Uni-Trak with 5-way Adjustable Preload
BrakesFront: Single 260mm Hydraulic Disc with Two-Piston Caliper
Rear: Single 220mm Petal Disc with Two-Piston Caliper
TiresFront: 110/70-17
Rear: 130/70-17
Rake, trail26°, 3.3 in
DimensionsL: 81.9 in.
W: 28.0 in.
H: 43.9 in.
Seat height30.7 in.
WeightTemplate:Auto lb (dry)
Fuel capacity4.8 US gallons (18 L)
RelatedNinja 500R, Ninja 650R

The Kawasaki Ninja 250R is a street motorcycle sold by the Kawasaki Motors division of Kawasaki Heavy Industries since 1983. It is Kawasaki's best-selling motorcycle, experiencing steady double-digit sales growth year after year. It is renowned for its light handling, good fuel economy, sufficient power, and relatively comfortable riding posture, making it a desirable first motorcycle for new riders, and a popular machine with experienced riders who seek a second machine, or wish to enter the sportbike category. The smallest Ninja has undergone few changes throughout its quarter-century existence, having seen only two substantial redesigns.

Nomenclature

Owners and fans of the motorcycle commonly refer to it by its platform designation, EX250. This designation is followed by an alphabetical suffix indicating the generation. Before the 2008 model, the motorcycle carried different marketing names worldwide/ The 2008 (EX250-J) model is known as the Ninja 250R in all markets. In the United States, previous generations (EX-250E/F/G/H) were also marketed as members of the "Ninja" family of sportbikes, while outside the U.S. it is known as the ZZR-250, ZX-250, or as the GPX-250R. Past models (EX250-C) have carried the base designation GPZ-250. As the smallest of the Ninja motorcycles, the Ninja 250R has received the affectionate nickname "Ninjette" or "Baby Ninja".

Description and features

In many respects, including ergonomics, chassis design, engine placement within the frame, the Ninja 250R straddles standard and sport classes. Likewise, the bike's riding position falls between standard and sport. Capable of running the 1/4 mile in 14.6 seconds at 88mph, [1] the bike's features include bungee hooks, center stand (no longer available on the 2008 model), a tachometer, and front and rear disc brakes. [2]

The bike has been heavily updated for 2008[3] with completely redesigned fairings and 17" wheels. As of 2007, the 250R is being produced in Thailand. [3]Kawasaki has marketed the Ninja 250R since 1986 [3] as an entry-level [1] [2]

The Ninja 250 has little direct competition within its class in the United States, partly due to it being one of the two 250 cc sport bikes sold. In Canada, Honda's 2007 introduction of the CBR125R has caused competition for Kawasaki's share in the entry-level sport bike market. The other main competitors are the other 250 cc "beginner bikes," namely the Hyosung GT250R, Honda's Rebel 250 and Nighthawk 250, the Suzuki GZ250, and the Yamaha Virago 250. With the exception of the Nighthawk, (a standard) and the Hyosung, these bikes are all cruisers.

Before the 2008 model, neither the Ninja nor these other US 250's had changed much in recent years, but outside the United States there were many advances in small-displacement, lightweight, and/or low-cost motorcycles, including several four-cylinder, sixteen-valve 250s (e.g., the Honda "Hornet" 250 or Ninja ZX-2R). That being said, the Ninja 250 enjoys a modest following among riders who appreciate its light weight and nimble handling as an amusing "track bike." The very fact that it hasn't changed much since 1988 means parts are plentiful and inexpensive, and the rider community is well established.

First generation

  • EX250-C - Also known as the GPZ-250. This earliest, belt-driven version was first produced in 1983, and has nothing in common with the latest generation.

Second generation

  • EX250-E - This model was sold as the Ninja 250R in Canada and the U.S. between 1986 and 1987. It was known as the GPZ-250R elsewhere. The engine from this model persisted until 2007 with minimal changes.

Third generation

A 1998 EX250-H
  • EX250-F - The most widespread version of the motorcycle, it was sold between 1988 and 2007 in the U.S.. Canada received the model between 1988 and 1999, and it was available elsewhere as the GPX-250R as early as 1987.
  • EX250-G - Never sold in North America, this version was known as the GPX-250R-II. It sported dual front brakes, which slowed a wider wheel and tire (110/80-16). All other parts where identical to the -F model. It was sold after 1988.
  • EX250-H - This model came to Canada as the Ninja 250R between 2000 and 2001, after which it received a new name: ZZR-250, in line with the -H model's name elsewhere in the world, where it had existed since 1992. This motorcycle has few parts in common with the -F model, though it shares the same engine (with different casings). It sports a lateral aluminum frame, different fairing (designed to make it look sportier), larger (17") wheels, an adjustable rear shock absorber, adjustable brake and clutch levers, a smaller drive sprocket, computer-controlled timing advance, and a revised electrical system.

Fourth generation

In 2008, Kawasaki gave the EX250 its most thorough modernization in many years. The EX250-J model is known as the Ninja 250R worldwide. Kawasaki increased the MSRP by $500 U.S.D., to $3,499 in 2008 and by $1,000 U.S.D. to $3,999 in 2009.

Parts from the third generation are still found on the -J, but its redesigned exterior panels bring the smallest Ninja's appearance out of the '90s and into line with late-2000s sportbikes. The engine and drivetrain retain 30% of the -F model's parts, according to Kawasaki literature. The engine's compression and maximum torque have been lowered to provide 20% better midrange performance, where the motorcycle will spend most of its time. The U.S.-spec -J model uses dual carburetors like the -F model, but the European-spec and Thailand-spec model have a fuel-injection system. The wheels were increased in size to 17", the front suspension was beefed up, and the front brake rotors were replaced with a larger "petal" design. A fuel gauge, a rarity in motorcycles, was added to the instrument cluster, implying an emphasis on attracting new riders.

Motorsports

Since the introduction of the model in 1986, the Ninja 250 has been often used as a "starting class" bike in club racing around the world. The AFM in California has been especially involved with 250 Production racing since the bike was released, including the since faded Honda VTR250.

In 2007 (the last year of the 3rd generation EX250), the Ninja 250 of Hambone Racing, won the Overall Mini Endurance Championship with the Central Motorcycle Roadracing Association (CMRA). Piloted by CMRA longtimers Chuck Ergle and Keith Hertell, this marked the only time a Ninja 250 had ever won a CMRA Mini Endurance Championship.

Starting in 2008, the WSMC will have a class (The Ninja Cup) dedicated to the model.

Specifications and performance (EX250-F)

Specifications
Engine4-stroke Inline twin, DOHC, Liquid cooled, 8-Valve, w/ counterbalancer
Displacement248 cc
Rated 1/4 mile time14.3
StartingElectric
Bore x stroke62.0 x 41.1 mm
Compression ratio12.4:1
CarburetionKeihin CVK30 (2), Constant velocity, diaphragm-type, Fuel injection for Europe and Thailand Euro/Thai model
IgnitionCDI (electronic advance)
Spark plugNGK CR8HSA, CR8HIX, CR8HVX
option CR7HSA, CR7HIX
Transmission6-speed, Constant mesh, Return shift
ClutchWet, Multi-disc, Manual, Cable-actuated
FrameTubular Diamond design
Rake/trail27 degrees/3.3 in (84 mm)
Suspension, frontHydraulic telescopic fork
Suspension, rearUNI-TRAK system with single shock
Wheelbase55.1 in (1400 mm)
Wheel travel, front5.5 in (140 mm)
Wheel travel, rear5.1 in (130 mm)
Tire, front100/80x16
Tire, rear130/80x16
Brakes, front/rearSingle hydraulic disc
Overall length80.1 in (2034 mm)
Overall width28.0 in (711 mm)
Overall height43.1 in (1095 mm)
Ground clearance6.1 in (155 mm)
Seat height29.3 in (775 mm)
Weight dry/wet304/355 lb (138/161 kg)
Max load341 lb (154 kg)
Fuel capacity4.8 US gal (18 L)
Fuel typeMin 91 Research / 87 avg. octane unleaded
Oil capacity3.2 L
Oil typeSE-SG Class SAE 10W40-20W50
Performance stats
0-60 mph (0-100 km/h)5.75s
1/4 mile14.6 s @ 88 mph
Maximum speed160 KM/h
Max power36 hp @ 11000 rpm, 26 hp @ rear wheel
Power / weight ratio+/- 0.13 kW/kg
Max Torque18 ft.lbf (24 Nm) @ 10000 rpm, 14 ft.lbf (19 Nm) @ rear wheel
Fuel Efficiency55-75 mpg US

Specifications and performance (EX250-J 2008 - Present)

Specifications
Engine4-stroke Inline twin, DOHC, Liquid cooled, 8-Valve, w/ counterbalancer
Displacement249 cc
StartingElectric
Bore x stroke62.0 x 41.2 mm
Compression ratio11.6:1
CarburetionKeihin CVK30 (2)
IgnitionDigital with anti-hotwire circuit
Transmission6-speed, Constant mesh, Return shift
ClutchWet, Multi-disc, Manual, Cable-actuated
FrameTubular Diamond Steel
Rake/trail26 degrees/3.26 in (83 mm)
Suspension, frontHydraulic telescopic fork
Suspension, rearUNI-TRAK system with gas-charged single shock and 5 setting adjustable preload
Wheelbase55.1 in (1400 mm)
Wheel travel, front4.7 in (120 mm)
Wheel travel, rear5.1 in (130 mm)
Tire, front110/70x17 (54H)
Tire, rear130/70x17 (62H)
Brakes, front/rearSingle hydraulic disc 11.4"/8.7" (290/220 mm)
Overall length82.1 in (2085 mm)
Overall width28.1 in (715 mm)
Overall height43.7 in (1110 mm)
Ground clearance6.1 in (155 mm)
Seat height30.5 in (775 mm)
Weight (wet)375.8 lb (170 kg)
Max load375 lb (170 kg)
Fuel capacity4.8 US gal (18 L)
Performance stats
1/4 Mile 14.5s
Maximum speed 150 KM/h
Max power31 hp (30 PS)
Max Torque16.2 ft/lbs (22 Nm)
Fuel Efficiency60 mpg US (official) 45-50 mpg (reported)

References

  1. ^ a b "Kawasaki Ninja 250 Review". Beginner Motorcycles 03/07/2007.
  2. ^ a b ".25 Caliber Shootout Three Japanese Fighters Whip Out Their Little Guns". Motorcycle.com, Dec. 15, 1997.
  3. ^ a b c "2008 Kawasaki Ninja 250R - First Ride". MotorcycleUSA.com, 2/12/2008, Bart Madson.

External links

Leave a Reply