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Home >> Triumph >> 1972 >> Spitfire Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emission Systems >> Operation >> Lost Motion Throttle Link
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Lost Motion Throttle Link

On GT-6, TR-250 & TR-6 models, when throttle is depressed, lost motion link will prevent throttle valves from opening until vacuum control valve has cut-off retard action of distributor. This action allows distributor to advance normally as engine RPM increases. On Spitfire and Stag models, "lost motion" is incorporated into linkage to ensure complete throttle closure. Linkage does not require adjustment during normal operation.