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Automatic Choke System

  1. Check for proper choke operation. With engine cold, choke should be held slightly open by choke breaker (on 20R engine have choke opener hose disconnected).
  2. Check that choke stays closed when engine is accelerated. Make sure choke opens when engine warms up. If choke does not operate as indicated, check linkage and choke breaker diaphragm.
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