@used_outboard_motors: Is a 300 on a john boat necessary? Probably not. But what is necessary is flushing it after a long day sending it. Mud and debris can clog your cooling system, wear down the impeller, and lead to corrosion. A proper flush with a Flushmaster system and Quick Connects protects your engine and keeps it running smooth. Why It Matters: 1. Prevents Overheating - Clears mud from cooling passages. 2. Protects Key Components - Reduces wear on impeller and water pump. 3. Fights Corrosion - Flushes out harmful minerals and organics. 4. Maintains Performance - Keeps your motor running cool and strong. #boatcare #outboardmaintenance #jonboat #marine #foryoupage