• Keep the fuel tank topped to reduce the chances of condensation building up when the 9.8hp outboard motor isn't in use.
• Add fuel stabilizer every time you add fuel — it's important now with ethanol fuels.
• Inspect the prop at every opportunity. A ding might cause chatter at cruising speeds, but a tiny one could go unnoticed — and still do damage.
• Look over the fittings and hoses; cool water needs to run through the motor to keep it from burning up.