Swissauto 250 - Basic Settings of the Carburetor

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Basic Settings of the Carburetor
Carburetor Dell’orto PHF 30 DD1
Main jet 106
Idle jet 55
Inner venturi BF1
Needle jet AB 260
Needle K29
Needle clip position 1 R.V.O.
Accelerator pump:
Injection nozzle 38
Injection time 0.5 seconds =
Diaphragm stop position 3 ¼ turns open
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Installation onto the Go-Kart
Put the two hose clamps onto the
carburetor rubber and push the
rubber onto the intake port.
Put the carburetor into the
carburetor rubber and tighten
both hose clamps.
Check if the carburetor is
positioned horizontally.
Otherwise adjust carburetor
position accordingly.
Pull the crankcase ventilation
hose onto the ventilation tube and
push the tube into the
corresponding hole on the air
filter.
Install the air filter onto the
carburetor and tighten the hose
clamp.
Connect the crankcase ventilation
hose to the engine’s ventilation
tube.
Connect the gas line to the
carburetor.