2011 YZ450F GYTR Tuner Explanation

1 reply to this topic
  • FUJIMO-33

Posted March 07, 2011 - 09:56 AM


On the tuner under the maps can someone explain the correlation between the engine speed columns and the opening angle rows on the maps. I am really just wanting to understand what the adjustments mean and do to the bike besides just reading maps off the forum that people has already tried. I am an auto technician and have a good understanding of what the terms mean, but just don't get how you put the two together in a 3 by 3 box.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted March 07, 2011 - 02:58 PM


The RPM is at three levels (4000, 6500, & 9000) along the X axis (horizontal) with 4000 at the lower left. The RPM is along the Y axis, starting at the lower left and showing, according to the manual, 10, 30, and 60+ degrees of throttle angle.

The base map for a stock engine is all zeros. The plus/minus values inserted in any cell moves either the fuel or timing richer/leaner or advanced/retarded from that.

Here's a link to a tuner manual:


Related Content


James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Should I buy this bike? help....... by Numsa Hul

Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 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

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

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.