Yamaha YZF600R

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Yamaha YZF600R
Also calledThundercat
ClassSport bike
Engine599 cc inline 4 cylinder
Transmission6-speed sequential
Wheelbase55.7 in
Seat height31.7 in
Weight417 lb (189 kg) (dry), 490 lb (222 kg) (wet)
Fuel capacity5.0 gal
RelatedYamaha YZF1000R Thunderace

The Yamaha YZF600R (known as the Thundercat in European markets) is a 599 cc sports bike made by Yamaha from 1994 to 2007. While similar in style to its sibling, the YZF-R6, the 600R maintains some significant differences, including a less aggressive posture, lower revving and higher torque producing motor, a large 1 piece seat and a steel frame rather than aluminium. While the 600R started out in life as Yamaha's 600 cc class Supersport motorcycle, it is now considered a comfortable alternative to the aggressive racing motorcycles that dominate the 600 cc market.


First offered for sale in North American markets in 1994, the YZF600R underwent a major aesthetic restyling in 1997 and was introduced to Europe in 1996 as a replacement to the FZR600. It retained major mechanical componentry such as the engine, transmission, suspension components and steel "Deltabox" frame, which is perhaps the largest contributor to its hefty weight when compared to the modern competition.

With its inline 4 cylinder engine and 90 bhp (67 kW) the YZF600R Thundercat is a comfortable and road minded sports bike. While it weighs in at a hefty 417 lb (189 kg) dry, it is still capable of 150 mph (240 km/h). Its comfortable seating position and relatively torquey motor make it a favorite for sport touring applications, while the fully adjustable suspension and legendary Sumitomo One piece brakes (later used on the R1 and R6) also make it a good choice for track racing.

Yamaha produced and marketed the YZF600R in the United States and Canada for 13 years, with little more than periodic aesthetic updates. At a very competitive US$7,099 MSRP, the YZF600R was one of the least expensive sports motorcycles on the market compared to the US$9,199 MSRP YZF-R6 and others. Unlike many older model sports motorcycles, the YZF600R continued to receive praise from motorcycle publications for its build quality, reliability, comfort and handling, until the end of its production run.

Emerging emissions restrictions ended sale of the Thundercat in Europe in 2005, and the YZF600R was discontinued in the United States and Canada in 2008, replaced by the previous generation fuel-injected YZF-R6, rebadged YZF-R6S.


1994-1996 1997-1998 1999-2000 2001-2003[1][2][3] 2004-2006[4][5][6] 2007 (final year)[7]
Bore x Stroke 62 mm x 49.6mm
Carburetion 36 mm Keihin CV Downdraft Carburetors (4)
Compression Ratio 12:1
Final Drive O-ring chain
Ignition Digital TCI
Transmission 6-speed w/multi-plate clutch
Type 599 cc, Four-stroke DOHC inline four, 16 valves 599 cc, liquid-cooled, 16-valve, DOHC, inline four-cylinder
Brakes/Front Twin 300mm drilled discs 4 Piston Sumimoto Calipers Dual 298 mm floating discs w/4-piston calipers
Brakes/Rear Single 240mm disc single piston caliper 245 mm disc w/single-piston caliper
Suspension/Front Machined 2 section conventional forks adj for preload rebound and damping 41 mm telescopic fork w/adj. preload, compression and rebound damping; 5.1" travel
Suspension/Rear Ohlins monoshock Single shock w/piggyback reservoir and adj. preload, compression and rebound damping; 4.7" travel Single shock w/remote reservoir and adj. preload, compression and rebound damping; 4.7" travel
Tires/Front 120/60-ZR17
Tires/Rear 160/60 ZR17
Dry Weight 430 Lbs. (195 kg) 416 Lbs. (189 kg) 412 Lbs. (187 kg) 417 Lbs. (189 kg)
Fuel Capacity 12L and 2L reserve 5.0 US Gal. (19 L)
Height 46.9 inch (119 cm)
Length 81.5 inch (207 cm)
Oil Capacity (with oil filter change) 2300 CC 3.07 Qt. (2.9 L) Spec Not Available
Rake (Caster Angle) 25.0°
Seat Height 30.7 inch (27 cm) 31.7 inch (80.5 cm)
Trail 3.82
Wheelbase 56.3 inch (143 cm) 55.7 inch (141.5 cm)
Width 28.5 inch (75.4 cm)
Gear Ratio - 1st Gear 37/13 (2.846) Spec Not Available
Gear Ratio - 2nd Gear 37/19 (1.947) Spec Not Available
Gear Ratio - 3rd Gear 34/22 (1.545) Spec Not Available
Gear Ratio - 4th Gear 28/21 (1.333) Spec Not Available
Gear Ratio - 5th Gear 25/21 (1.190) Spec Not Available
Gear Ratio - 6th Gear 29/27 (1.074) Spec Not Available
Jet Needle #1,4: N3FC #2,3: N1YF Spec Not Available
Main Air Jet #80 Spec Not Available
Main Jet #155; CA mdl = #148 Spec Not Available
Needle Jet 2.6 Spec Not Available
Pilot Air Jet 1 #140 Spec Not Available
Pilot Jet #38 Spec Not Available
Pilot Outlet 0.9 Spec Not Available
Primary Reduction Ratio 82/48 (1.708) Spec Not Available
Secondary Reduction Ratio 47/15 (3.133) Spec Not Available
Warranty 1 Year Limited Warranty
MSRP Not Available $7,099


Colors varied throughout the years.

2001: Team Yamaha Blue/White; Black
2002: Team Yamaha Blue/White; Black
2003: Team Yamaha Blue/White; Liquid Silver
2004: Team Yamaha Blue/White; Liquid Silver
2005: Team Yamaha Blue/White; Liquid Silver
2006: Team Yamaha Blue/White; Raven
2007: Team Yamaha Blue


External links