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Everything Dirt Bike
Make / Model Specific
Yamaha
what year wr450f?
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<blockquote data-quote="SPEAKERMAN" data-source="post: 59687" data-attributes="member: 120"><p>'03-4: good power, higher compression, good steel frame, terrible forks. Funky CDI issues on all bikes. '03 sheared woodruff keys if you did not fix it asap.</p><p>'05-06: softer power, lower compression, '04 YZ forks (bigger and better), and CDI issues mostly resolved</p><p>'07 on: gearbox upgrades, cam chain upgrades, allow frame, motor tilted back 3 degrees, narrower plastics and seat, better overall feel. Suspension travel lower 10mm to lower seat height. </p><p></p><p>'07 is the way to go. Feels lighter, much better forks, cleaner/smoother running motor.</p></blockquote><p></p>
[QUOTE="SPEAKERMAN, post: 59687, member: 120"] '03-4: good power, higher compression, good steel frame, terrible forks. Funky CDI issues on all bikes. '03 sheared woodruff keys if you did not fix it asap. '05-06: softer power, lower compression, '04 YZ forks (bigger and better), and CDI issues mostly resolved '07 on: gearbox upgrades, cam chain upgrades, allow frame, motor tilted back 3 degrees, narrower plastics and seat, better overall feel. Suspension travel lower 10mm to lower seat height. '07 is the way to go. Feels lighter, much better forks, cleaner/smoother running motor. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
what year wr450f?
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