2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 39Get this manual

2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 39

Maintenance Final DrivePropulsion Cooling Water Pickup Screen Inspect the screen in the pump stationary nozzle for debris
which indicate leak in the sealant around the scoopEven small leak will ventilate the pump area, creating cavitation of the
pump and reducing performanceIf leak is evident, remove the scoop and re-sealRefer to Final DriveJet Pump section for proceduresExcess
silicone sealant can be trimmed until flush with edges Intake Grate Ride Plate Drive Shaft Impeller Impeller Clearance WARNING
Be sure the lanyard cord and lock plate are removed from the engine stop switch to kill the ignition or severe injury could
result1Remove intake grate2Use feeler gauge to measure impeller clearance along each blade in three spotsIf measurement exceeds
service limit, replace impellerIf clearance is excessive with new impeller, the pump housing must be replaced Impeller Clearance