For a Suzuki 115HP outboard, the annual (or 100-hour) service checklist typically includes the following:
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Engine oil change
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Replace oil filter
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Inspect and/or replace spark plugs
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Replace fuel filter and water separator
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Inspect and clean the propeller; check for fishing line
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Lower unit gear oil change
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Check and adjust valve clearance (for 4-stroke models, usually every 200 hours but inspect annually)
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Inspect timing belt (if applicable)
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Grease all moving parts and pivot points
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Flush cooling system and check water pump impeller
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Inspect anodes (internal & external)
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Inspect battery and connections
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Run diagnostics if available (via SDS system)
These checks are based on Suzuki’s general maintenance schedule but can vary slightly by model year. Always refer to your specific model’s service manual for detailed procedures and intervals.
Feel free to reach out to us with more details on your Suzuki 115HP (e.g. model year, serial number, etc.) so we can help point you in the right direction.
