2008 Yamaha WaveRunner FX SHO / FX Cruiser SHO Service Manual, Page 162Get this manual
Air cooler, supercharger, and throttle body assembly
Air cooler check
CAUTION:
The air cooler assembly should not be disassembled1Check: Air cooler assembly Cracksdamage Replace the air cooler assembly Air cooler holding pressure Cannot be maintained Replace the air cooler assembly