Might have a hard time finding video. It's really THAT easy.
You unplug a plug on throttle body that looks exactly like one on your FMF.
That get's plugged into female plug on FMF.
Then the FMF plug that looks like the one you unplugged from throttle body gets plugged into throttle body.
It effectively makes a loop.
There's a ground wire. That's about it.
Put FMF unit where-ever you want it. Some have it attached to handlebars. Some have it located under seat.
Honestly, once you find the setting you like, you'll almost never adjust it after that.
Placing it out of site under seat prevents people from stealing it.
Try not to sweat the details. If you're mechanically inclined installing the FMF shouldn't be much more intense than changing oil or filling gas tank.
Search on google or youtube - if you can't find a video - make one.
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2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs