2008 Yamaha WaveRunner FX SHO / FX Cruiser SHO Service Manual, Page 339Get this manual
Remote control system
E 2Remove the battery 33Measure the battery voltage
CAUTION:
Do not touch the internal parts except the battery Do not touch the battery directly with your handsUse pair of non-conductive tweezers to replace the batteryNOTE: Refer to local hazardous waste regulations when disposing of transmitter batteriesRemote control transmitter battery voltage: 3.0 4Install the battery and transmitter cover 2