Specifications for a Grizzly 600

by Phil Whitmer
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The Yamaha Grizzly 600 had the largest ATV displacement engine of its time when it was released in 1998. It was made by the Japan-based Yamaha Corporation. It was produced from 1998 to 2002, when it was replaced by the Grizzly 660.


The 1998 Yamaha Grizzly 600 had a 595-cc displacement, single overhead cam, four-stroke, single-cylinder engine with a bore and stroke of 95 mm by 84 mm. The combination air- and oil-cooled powerplant got its carburetion from a 40 mm BST Mikuni and was cranked by an electric recoil starter.


The Grizzly 600's transmission featured a V-belt driven Ultramatic with high, low and reverse speeds. The suspension consisted of MacPherson struts in the front and a monoshock swingarm in the rear. The tire sizes were 25 by 8 inches in the front and 25 by 10 in the rear.


The Grizzly 600 measured an overall length of 81.9 inches and 45.7 inches wide, with a seat height of 34.1 inches, a wheelbase of 49.4 inches and ground clearance of 10.6 inches. Its factory-claimed dry weight was 639 pounds.

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