Yamaha YZ Power Tuner

[Dacotensis]

I ended up with three of these. Brand new in the box when I opened up an auction box.
So, what do they do?
I can see they have something to do with Fuel injection, but what is their application?
Would it be Street bike, dirt bike or what?
And any idea what they are worth?
Thanks

[220swifty]

The YZ is the dirt bike designation. Thats all I know for sure.

[Tom Pullings]

Yamaha uses yz for its 4 stroke dirtbikes and streetbikes (eg yz450f or yzf-r6). It could be for streetbikes since FI is fairly new amongst dirtbikes.

[Dacotensis]

Thanks guys.
Any idea what it's worth?

[bubba 96]

I just googled yz power tuner, same 1 comes up, looks like they came with the bike, so you can adjust high and low end......no prices on that site but if they come with the bike, there might not be too high of a demand, maybe a smaller mechanical shop might be interested.....

Used for the 2010 yz 450's....

[Sneeze]

Worth about $200- $250 each.

Cross check the serial number against year of bike. They started with fuel injection in 2010. So it would be for the 2010, 2011, or 2012. (Perhaps all three)