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This forum is for talking about anything and everything that doesn't fit into one of the other forums. Please refrain from discussing political or religious topics.
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YFZ Powertrain

YFZ450 Engine, Intake, Exhaust, Carb, Big Bore Kits.
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YFZ450 & YFZ450R General talk

Anything related to the new YFZ450R and YFZ450 that doesn't fit into any topics below post here!
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Parts

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  1. Jetting FAQ's

    YFZ Powertrain
    This is a pretty basic outline for jetting on the YFZ450. These settings are for sea level if you are anywhere from 1500ft to sea level these settings should be very close to right on. Anything above 1500ft should lean the settings accordingly. Also, as a good adjustment you should raise the...
  2. Yfz450 Cam Mod

    YFZ Powertrain
    This is a simple write up for any year yamaha yfz450 quad to convert to yz450f cam timing.... also known as the "cam mod". No this will not hurt nor damage the motor in any way IF done correctly. I know some people have heard that there could be some issues with doing the cam mod on an '06/'07...
  3. the MOTHER FCR tuning / INFO thread

    YFZ Powertrain
    there are lots and lots of carburetors out there....lots of differences...so i will condense the majority of the thread to info pertinent to my all time favorite 4-stroke carb... the KEIHIN FCR carb.... keihin is a subsidiary of Honda Motor Corp... and their 2-stroke and 4-stroke carbs are state...
  4. Pics Of Your Bike!

    Images and Other Media!
    Hey guys, im going to end up gettin a yfz so im interested in everything aftermarket. so help me out and post some pics of your bikes and what all you have done. Graphics, paint, suspension, EVERYTHING! Come on guys, its your time to show it off and brag a lil....give me ann idea on what i wanna...
  5. Share your MSD Blaster Fi settings here

    YFZR-X Powertrain
    Ok guys this thing has been out for a bit lets start sharing what we have. Post up your aftermarket parts, elevation/city, a basic map, and any dyno sheets if you have had a custom map built and dont mind sharing it that would be great, if I forgot any relevant information feel free to post it...
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