Summary of Contents for Honda Accord 1986-310 Service Manual - Page 44

  • Honda Accord 1986-310 Service Manual - Page 44

    Unlaadar mechanism When a cold engine is started, the closed choke valve is opened a fixed amount by the linkage whenever the accelerator pedal is depressed beyond a certain point. This mechanism prevents the air fuel mixture from becoming excessively rich when additional acceleration is required. cI-IOKE VALVE CHOKE DRIVE LEVER FAsr IDLE CAM GUIDE FAST IDLE LEVER CAM YHRoT‘rLE VALVE Fast idle mechanism Before starting the cold engine, it is necessary to depress the accelerator pedal once in order to disengage the fast idle cam from the fast idle lever. When the accelerator pedal is released slowly, the fast idle cam is initially positioned by the bimetallic coil spring according to the ambient temperature. As the choke heater warms the bimetallic coil spring, the lever rotates clockwise, opening the choke valve. The fast idle cam and lever will remain where originally set unless the throttle is depressed to wide open. When the engine runs smoothlv, the idle speed can be reduced by slowly depressing the accelerator pedal. Bcfovn sun 9 mar n9 Warm 9 up FAST IDLE LEvEn CHOKE VALVE FAST lDLE CAM THROTTLE VALVE 0min, ml. nriu nmrding m um position. FAsr IDLE CAM 3-7