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Pilot system
The FLATCR carburetor is manufactured with
a pilot screw. The pilot screw adjustment
ranges from fully closed throttle to 1/4 open
throttle.
Main jet adjustment
The richness of the air-fuel mixture at full throt-
tle can be set by changing the main jet 1.
If the air-fuel mixture is too rich or too lean, the
engine power will drop, resulting in poor accel-
eration.
Effects of changing the main jet (reference)
Å Idle
7 - 4
SETTING
Standard main jet
Å
1/4
1/2
#172
#152
ı Fully open
T U N
#162
ı
3/4
+10%
#162
–10%
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