Yanmar — Long storage preparation
Maintenance · Engine
From a Yanmar service manual — check it applies to your exact model before use.
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Before you start
- Negligence of water draining will cause coolant water to freeze and expand, damaging engine parts
Procedure
- Drain coolant water in a cold season or before a long storage
- Remove mud, dust and oil deposit and clean the outside
- Perform the nearest periodic inspection before the storage
- Drain or fill the fuel oil fully to prevent condensation in the fuel tank
- Disconnect the battery cable from the battery negative (-) terminal
- Cover the silencer, air cleaner and electric parts with PVC cover
- Select a well-ventilated location without moisture and dust for storage
- Perform recharging once a month during storage
Source: Yanmar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.