Auto-Enricher (Auto-Choke) System - PGO G-MAX 50 Service Manual

AUTO-ENRICHENER (AUTO-CHOKE) SYSTEM
The automatic enrichener (automatic choke) device consists of the PTC heater A, the
thermo-wax B and the plunger/needle
moves upward, Fuel is drawn into the enrichener circuit from the float chamber
Enrichener jet
coming From the upper part of the float chamber
part of The fuel pipe and mixes again with the air coming through a passage extending from main
bore .
The two succesive mixings of fuel with air are such that proper fuel/air mixture for starting is
produced when the mixture is sprayed out through outlet port
NOTE:
An enrichener is operated almost the same way as a choke.
When the engine is cold:
The automatic enrichener passage is always open as the thermo-wax remains atomospheric temperature.
When the engine is started:
According to the PTC heater temperature, the thermo-wax gradually expands and closes enrichener
passage by the needle of the plunger.
. When the thermo-wax B is cold, the plunger/needle
meters this fuel, which then flows into fuel pipe
. The mixture, rich in fuel content, reaches upper
into the main bore.
.
and mixes with the air