Carburetor - Automatic Temperature Control Accelerator Pump (Models without catalyzer)
EF & EC-169wiring diagramApplies to models without catalyzer.
Automatic Temperature Control Accelerator Pump (Models without catalyzer)
Automatic Temperature Control Accelerator Pump Circuit
Components (6)
BatteryFusible LinkIgnition SwitchFuseAccelerator Pump Control SolenoidWater Temperature Switch
Connections (5)
Battery
BatteryFusible Link??
Fusible Link
Fusible LinkIgnition Switch??
Ignition Switch
Ignition SwitchFuse??
Fuse
FuseAccelerator Pump Control Solenoid??
Accelerator Pump Control Solenoid
Accelerator Pump Control SolenoidWater Temperature Switch??
Operate accelerator pump by opening throttle lever with engine stopped. Check if pump nozzle located at primary port injects fuel smoothly without delay. If N.G., check accelerator pump piston or linkage. Amount of fuel injected is controlled by the water temperature.
OPERATION
Operation
"ON" or "START"
Water temperature switch °C (°F)ON Below 70 (158)
Accelerator pump control solenoidON
Amount of fuel injectedHigh
"ON" or "START"
Water temperature switch °C (°F)OFF Above 70 (158)
Accelerator pump control solenoidOFF
Amount of fuel injectedNormal
"OFF"
Water temperature switch °C (°F)—
Accelerator pump control solenoidOFF
Amount of fuel injectedNormal