Carburetor - Accelerator Pump / Dash Pot or F.I. (Fast Idle) Pot

EF & EC-173prose procedure

Dash pot / F.I. pot touch speed differs by engine (GA13DS/GA14DS vs GA16DS) and catalyzer fitment (* = models with catalyzer).

1
After stopping the engine, make a visual check of the accelerator pump connecting rod and lever. If they are bent or twisted, replace them.
SEF443K
2
Turn the throttle lever and make sure that fuel is smoothly injected from the injector located in the primary port. If the accelerator pump is not functioning properly, check the pump piston. Replace it if necessary.
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1
Engine idle speed and mixture must be set properly and engine warmed up sufficiently.
2
Turn throttle valve by hand, and read engine speed when dash pot or F.I. pot just touches stopper lever.
Dash pot or F.I. pot touch speed:
GA13DS & GA14DS: 2,540 ± 200 rpm, 2,500 ± 200 rpm*
* For models with catalyzer
GA16DS: 2,500 ± 200 rpm
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3
If out of specifications, adjust it by turning adjusting screw.
4
After adjusting, make sure that engine speed drops smoothly from 2,000 to 1,000 rpm in approximately three seconds.

Specification	Value
Dash pot / F.I. pot touch speed - GA13DS & GA14DS	2,540 ± 200rpm
Dash pot / F.I. pot touch speed - GA13DS & GA14DS (with catalyzer)models with catalyzer	2,500 ± 200rpm
Dash pot / F.I. pot touch speed - GA16DS	2,500 ± 200rpm

Dash pot / F.I. pot touch speed - GA13DS & GA14DS

2,540 ± 200rpm

Dash pot / F.I. pot touch speed - GA13DS & GA14DS (with catalyzer)models with catalyzer

2,500 ± 200rpm

Dash pot / F.I. pot touch speed - GA16DS

2,500 ± 200rpm

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