Yamaha YZ450F

 YZ450F Yamaha Owner / Service Manual

Buy / Download Complete Owners Manual 

FORMAT: PDF
LANGUAGE: English
COMPATIBLE: Win / Mac / Linux

Yamaha introduced the radically new 2010 YZ450F to the world at Maryland’s Budds Creek Motocross Park, and Motorcycle.com was there to see if its turned engine layout and extreme mass centralisation was effective in giving the fresh YZ the agility it promises.Miles from our nation’s capital, Budds Creek is draped across a small creek valley, giving the course its constant peaks and valleys – there’s not one flat turn or straight-away out there besides the holeshot line.As MO’s resident lo-po tester – bringing you reviews of Piaggios instead of Ducatis – I was happy to get the opportunity to ride something with power enough to require holding on tight. But we all know, I’m not a track star, road or different, so we brought along a new friend to MO, Joey Webb, to really put the new YZ to the test. Joey currently races the previous YZ450F and is fresh off trying Kawasaki's new KX450F, so it was going to be concerning to see how they compared. First things first, the new YZ is a clean-sheet full redesign of Yamaha’s largest sibling dirt bike, with only a rear brake cable as carry-over from the 2009 YZ. While the main difference between MY08 and MY09 YZs was a hydro-formed swing arm, this year almost everything is changed. The reversed engine configuration and addition of fuel-injection is matched by a new frame design and a ‘tornado’ vortex exhaust, all designed for mass centralisation and a better handling bike for any rider.As such, we’ve got some technology to catch up on. Kevin Duke’s unveiling report was only so delicious – you have to take a bite to get the full taste of this motocrosser. Joe did most of the laps while I packed the cameras full of photos and video clips, but I did manage to get a few licks in during our two-day test. Arm-pumped and primed, this is what we’ve learned about the 2010 Yamaha YZ450F. It’s been a great while since MO’s had a YZ report, but we’re turning over a new leaf just as Yamaha is hitting the market with its next manufacture disruption. In 2003, MO tested the first 449ccYZ450F. It's now making headlines again. With an entirely new twin-beam frame, rotated engine design, adjustable fuel injection, extreme mass centralization and new styling, the 2010 YZ450F is sure to turn heads if not losers into winners." It's leaps and bounds better than last year's YZ, that's for sure,” Webb assures. “Its handling doesn't even feel like a 450. It feels closer to a 250. ”But is it enough to dispute the excellent new KX450F? In terms of power, Joey says “the Kawasaki still has it beat.” But he adds that the YZ has an edge in the way it deals and steers, “feeling lighter and more predictable in the corners." The new YZ is available in two colors: Team Yamaha Blue/ White for $7,990 and a White/Red combo with black wheels and a gold chain for $8,090. 

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