Yamaha YZ250, Where America Goes for Yamaha YZ250 and Yamaha Y250 parts

24 Jan 2015 | Author: | Comments Off on Yamaha YZ250, Where America Goes for Yamaha YZ250 and Yamaha Y250 parts

Yamaha YZ 250 F


The desire for knob-chunking, roost-tossing performance.** That’s the heart-pounding appeal of a 250cc two-stroke in a nutshell. And no MX machine makes this statement quite like the YZ250,

All-new cylinder head and combustion chamber construction, combined with reshaped exhaust and scavenging porting, help deliver meaner mid-range hit and a broader over-rev envelope. A revised second-gear ratio gets that explosive punch to the ground with even less effort.

Stiffer, lighter frame and swingarm design ensures flex-free handling. And recalibrated suspension mean smoother fork travel and more precise rear wheel control.

The factory racing-spec adjustable clutch lever lets you fine-tune cable play for optimal lever pull and feel, on the fly. Also, stopping power gets a major boost in strength and feel this year with lighter-weight, compact (in factory bike style) front and rear disc brake calipers and a redesigned rear master cylinder, utilizing an integrated, space-saving fluid reservoir.

We’ll cut to the chase right from the get-go: the YZ250’s powerband is one of smoothest, yet brutally powerful, we’ve encountered on a stock bike. TRANSWORLD MOTOCROSS, 11/01

The YZ250. How bad do you want to win?

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Liquid-cooled, 249cc, reed valve-inducted, 2-stroke engine is lightweight, compact and boasts numerous modifications and upgrades to boost its incredibly wide, hard-hitting powerband even further for 2003.

All-new cylinder construction includes reshaped combustion chamber volume and porting, along with revised port timing, for bigger mid-range hit and top-end power.

Redesigned crankshaft and rotor slightly larger for greater rigidity and durability.

Shorter exhaust pipe with all-new bend angle helps deliver improved mid-range and high-rpm performance while also enhancing ground clearance.

Yamaha YZ 250 F

Smooth-shifting, 5-speed, close-ratio transmission with heavy-duty, multi -plate clutch features revised 2nd gear ratio to ensure optimal hook-up for outstanding acceleration and corner-exiting power.

All-new, high-tension steel, twin-spar frame is lighter with greater lateral rigidity by way of a stronger main pipe and thinner-walled cross-pipe.

Revamped front fork internals and revised settings mean smoother oil flow and enhanced damping performance.

Rear suspension refinements for 2003 include new shock absorber settings with revised linkage ratios for enhanced damping performance in conjunction with new swingarm.

Redesigned swingarm has lighter-weight construction to reduce overall weight while enhancing suspension performance, and features anodized finish for added durability and styling.

All-new, lighter-weight front and rear calipers with aluminum pistons and new-design rear master cylinder, combined with 250mm fully floating front and 245mm rear disc, deliver stronger stopping power with greater, more progressive control and feel.

Redesigned chain guide and cover help shave weight while improving mud removal abilities.

All-new handlebar design with repositioned crossbar provides greater strength and durability.

Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F
Yamaha YZ 250 F

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