Yamaha maptuner X Quick Step Manual page 5

Step 3
Plug MaptunerX in to your computer and click the
Synchronize button. MaptunerX will now go online
and update firmware.
Unplug MaptunerX from computer.
Step 4
Remove the Seat of your watercraft and locate the Electrical box &
Battery (Fig. 1). Remove electrical box cover to access ECU (Fig. 2)
1
Battery
Electrical
Box
To update MaptunerX press
the Synchronise button
2
Rear of
Craft
5