AllMoto's Motorcycle Investor mag
1998 Yamaha YZF 600 R Thundercat Technical Specifications
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The Ultimate Yamaha R6 Buyers Guide: "No Compromises" - Motofomo
2004 Yamaha YZF-600 R6
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Yamaha YZF-R1 - Wikipedia
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Comparing the Yamaha R1, R3, R6, and R7 - See Specs, Horsepower, and More - Moto Machines Blog | All Things Motorcycles
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2004 Yamaha YZF-600 R6
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YAMAHA R6 (1998-2003) Review | Speed, Specs & Prices | MCN
2001 Yamaha YZF-600 R6
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Yamaha YZF R6 price, specs, mileage, colours, photos and reviews - Bikes4Sale
YAMAHA R6 (1998-2003) Review | Speed, Specs & Prices | MCN
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YAMAHA R6 (1998-2003) Review | Speed, Specs & Prices | MCN
Yamaha YZF-R6 - Specification - Essential Superbike Data File Page
Yamaha YZF-R6 (2003-2005) | Used guide
