2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 21Get this manual
2-2 PERIODIC MAINTENANCE P Ch t
The scheduled maintenance must be done in accordance with this chart to keep the watercraft in good running conditionThe initial maintenance is vitally important and must not be neglectedDescription Frequency Hours Every 25 Hours Every 50 Every 100 Hours Hours Reference 2-10 2-10 (or every year)
Inspect throttle control system (e) Inspectclean air filter drain caps Inspectclean air filter Inspect fuel vent check valve Clean fuel pump screen (e) Inspect throttle shaft spring (replace throttle body if necessary) (e) Replace engine oil Replace engine oil filter Check air suction valve Inspectadjust valve clearance (e) Inspecttighten engine mounting bolts Inspectreplace coupling damper Flush cooling system (after each use in salt water) Flush ilge ine and filter Inspect impeller blades for damage (remove) Inspect steering cableshift cable Lubricate handlebar pivot (disassemble) Inspect hull drain screws (replace if necessary) Inspect battery charging condition Inspect battery terminals Clean and gap spark plugs (replace if necessary) (e) Lubricate throttle cable fitting at throttle body Lubricate throttle cable and throttle fitting at throttle case Lubricate steering cableshift cable ball joints and steepivots Check ll hoses, hose lamps, nuts, bolts, and fasteners (e): Emission Related Items