Suzuki DF200/DF225/DF250 V6 4-Stroke Outboards Service Manual, Page 52Get this manual
PERIODIC MAINTENANCE
PCV SYSTEM
Inspect initially after 20 hours (1 month) and every 50 hours (3 months) Replace every yearsNOTE: Be sure to check for any obstruction in the PCV valve or its hose before checking engine idle speedIAC dutyAn obstructed PCV valve or hose prevents proper operation of these itemsPCV HOSE Check crank case ventilation hoses (breather hose) and PCV hoses for connection, leakage, cracks, clog or deteriorationCheck for sticking or clogged PCV valveReplace as necessary1 2
1PCV valve 2PCV hose