# Each Year

The following tasks should be performed each season (approximately every 32 hours of track use).

| Task                           | Notes                          |
| ------------------------------ | ------------------------------ |
| Replace inner CV joints        | —                              |
| Replace spark plugs            | Gap: 0.8–0.9mm (0.032"–0.035") |
| Clean out fuel tanks           | —                              |
| Compression and leak down test | —                              |
| Replace all heim joints        | —                              |
| Flow test injectors            | —                              |
| Replace batteries              | —                              |
| Replace clutch cable           | —                              |
| Full differential rebuild      | —                              |
| Grease steering rack           | —                              |
| Dyno test engine               | —                              |

See also [rebuilding-axles.md](/maintenance/each-year/rebuilding-axles.md), [rebuilding-shocks-track-variable.md](/maintenance/each-year/rebuilding-shocks-track-variable.md), and [replacing-chain-track-variable.md](/maintenance/each-year/replacing-chain-track-variable.md) for track-variable items that may need attention sooner.


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