Service Repair Manual

SERVICE ADJUSTMENT PROCEDURES (FBC)

ELECTRIC CHOKE SYSTEM CHECK AND INSPECTION

CAUTION

All carburetors have a tamper-proof choke. The choke-related

parts are factory adjusted. The choke adjustment is not

required during service, except when major carburetor

overhaul or choke calibration related parts adjustments are

needed by state or local inspections.

1. Check that the alignment marks on the electric choke and

bimetal assembly are lined up.

If not, align the marks.

Misalignment Symptom

Clockwise deviation

Better startability but plugs more

likely to be sooty

Counterclockwise

Poorer startability and more likely

deviation

to stall

2. Check that the engine coolant temperature is below 10°C

(50°F).

Start the engine and check operation of the choke valve and

fast idle cam, with hand on the electric choke body.

Electric choke body Gets gradually hotter after engine start

Choke valve

Opens as bimetal temperature rises

Fast idle cam

Fast idle control is released as engine

coolant temperature rises and fast idle

breaker operates

If the electric choke body remains cool even after the engine

is started, check the electric choke.

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