Polaris TX Starfire Owner's Manual page 75

CARBURETORS (Can't.)
the starter drops and the intake of the fuel becomes weak.
When the engine has started, warm up the engine with the choke
engaged. After warm up, return choke to normal position.
When starting an engine that is already warm, activate throttle
slightly (about 1 /3).
OVERHAUL SERVICE
As you may have understood by the preceding explanations,
a carburetor has little mechanical functions, and troubles are
mostly due to the wear of parts and the clog by dirt and dust.
In overhaul service, use gasoline for washing out and blow dry
with an air compressor. Observe the following instructions.
STARTER SYSTEM
(a) The starter jet is driven into the float chamber body. Jets
should never be cleaned by drills or wire.
(b) Be careful in handling the starter plunger, since scratches
on the circumference cause malfunctioning and scratches on
the base prevent a tight seal which may cause a fuel leak while
driving.
(c) Since a damaged or worn rubber cap of the starter allows
the invasion of water from outside, replace it with a new one.
PILOT SYSTEM
(a) Be sure to use proper tools for overhauling the pilot jet,
and be careful not to make scratches. Wash out in gasoline and
blow dry with an air compressor.
(b) If the taper of the air screw is disfigured or worn, replace
it with a new one.
(c) When the pilot jet and the air screw are disassembled,
carefully clean the passages on the side of the body (the pilot
outlet and the by-pass, etc.).
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