Westerbeke 90A FOUR — Adjusting the Idle Speed

Adjustments · Fuel Injection Pump

For the Westerbeke 90A FOUR, from the Westerbeke operator's manual.

Procedure

1. Loosen the locknut on the idle adjustment bolt on the fuel injection pump.
2. Turn the idle adjustment bolt until the idling speed is within the standard range.
3. Tighten the locknut.
4. Race the engine several times to ensure the idle speed remains as set.

Source: Westerbeke operator's 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.

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