This is show coupler from Camshaft position sensor to connect main wire harness. This camshaft p sensor send signal to ECU(main computer) for positioning of camshaft but this sensor also radiate noise and that may cause to ECU pick up this noise as engine running problem. 
This is filter for stop noise from camposition sensor, from year 2003 model this parts fitted from factory but only 2002model need to buy and fit to between sensor to main harness. So this ski was not fit yet because fitted on this job.If your ski is yaer 2002model must need check this.
This is exhaust joint rubber hose between end of exhaust to water box.
This rubber need to replace when rubber damaged. This may cause to leak exhaust gas and loose power.Also we check more with full inspection show below.
Throttle bodys work and conditions check and lub
Electoric box conditions check and lub
Lead coupler conditions check and lub all coupler.
Drive coupling and damper conditions check
Bilge strainer conditions check and clean.
EL builge conditions check and clean
Impeller and jet pump conditions check.If your ski getting old or every 50hrs use we recommend inspection for avoid big damage and safe drive.
