2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 179Get this manual
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ENGINE TOP END 6-11 Clean ir System
nst emIfaceasll inhedeaalve iat'sssopebnliyngA[]Cso idheaftaicts sreinlds s[iB]e.side si nd ]s et Install the air suction valve coversTorqueAir Suction