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CARBURETED Models (Cold Engine)

NOTE: Engine coolant temperature must be below 140°C (60°C).

Disconnect vacuum hose No. 25 from vacuum advance diaphragm B. Connect vacuum gauge to hose. Start engine and run at idle. If there is vacuum, proceed to CARBURETED MODELS (HOT ENGINE)  test. If there is no vacuum, replace thermovalve A and retest.

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