Main Jet Replacing; Jet Needle - Suzuki PE250 Operating Instruction

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. ' Bouton de purge
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Gicleur principal .
Carburetor /
Carburateur Main jet replacing tool
Outil de remplacement
du gicleur principal
Lean
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Standard jet needle setting: 2nd notch
Reglage standard du pointeau:
2 eme encoche
of carburetor, and turn the carbu­
retor around to bring its float
chamber toward you.
4. Insert the main jet replacing tool
into the drain bolt hole and, with
this tool, remove the main jet.
5. Install the main jet of another
number in the carburetor. Plug up
the float chamber by refitting the
drain bolt.
6. Restore the carburetor (which is now
tilted condition) to the original po­
sition by turning it around, and
tighten the clamp. .screws on both
sides to secure the carburetor in
place.
JET NEEDLE
The needle controls the supply of fuel
for a throttle range of one quarter (1/4)
to three quarters (3/41. Whether the
existing jet needle is proper or not is to
be checked by testing as in the case of
main jet testing. A test run of about 10
PE250 with a clip fitted to the notch.
To make the mixture leaner, set the clip
at an upper notch of the needle, and
vice versa.
Jet needle setting influences carburetion
for the throttle range from quarter
(1/4)
down. To compensate this range for the
effect of the change made in jet needle
setting, the pilot air screw must be re­
positioned in place. In other words, if
the jet needle has been repositioned to
enrich the mixture (for
1/4-to-3/4
throttle range), then the screw must be
loosened, slightly to make the mixture
leaner (for up-to-1/4 range).
REMPLACEMENT DU GICLEUR
PRINCIPAL
1. Ramener Ie levier du robinet
carburant
a
la position OF F.
2. Deposer Ie boulon de purge de
a
la
cuve
a
niveau constant pour la vider
de son carburant.
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