4 replies to this topic
  • PickleRacer

Posted April 08, 2004 - 07:19 PM


My buddy has a 2001 yz426 and was curious how much horsepower it has(dyno?)...the motor is stock. Anybody know?

  • felony

Posted April 09, 2004 - 06:24 PM


i was just reading a back issue of "dirt bike" magazine and they had the dyno report of the 2000 yz426 and it put out 47.4 hp.I would imagine the 01 would be around that since the motors were pretty much the same except for clutch upgrades and titanium valves. :)

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • CronicArt

Posted April 11, 2004 - 07:01 PM


47.4HP If that is true I should be close to 60HP right now. COOL!

  • Satch0922

Posted April 12, 2004 - 02:22 AM


tell us all how you got another 13 HP from a 426

  • Jeffro426

Posted April 12, 2004 - 06:14 AM


tell us all how you got another 13 HP from a 426

Yes, please doo becuase i noticed in your signature you have zero motor work(cams, performance pistons, porting, etc) done on your bike. No way in hell your making anything near 60 without some of all of those done

Related Content

WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 replies

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride

Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.