Modern Vespa : Dell'orto SI Pilot/slow jet outlet hole location

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OP Nandosuke UTC details Member '64 VBB, '76 Vespa 90, '04 P150XE, '13 ZIP 100 4T, '96 PK125XL2 Plurimatic Joined: UTC Posts: 7 Location: Western Province
OP Nandosuke Member '64 VBB, '76 Vespa 90, '04 P150XE, '13 ZIP 100 4T, '96 PK125XL2 Plurimatic Joined: UTC Posts: 7 Location: Western Province	UTC quote hey Fellas! Just wondering, based on the dell'orto carb diagram, there's two pilot jet outlet hole I am pretty sure one of them is the hole that controlled by pilot screw, Anyone knows the other one located? [/img]

JimVanMorrissey UTC details Addicted Vespa PX200 Joined: UTC Posts: 605 Location: Belgrade
JimVanMorrissey Addicted Vespa PX200 Joined: UTC Posts: 605 Location: Belgrade	UTC quote It's hiding, here, on top of the slide: (Photo credit: BGMStella, in a post from 2020) Basically it's cracked open at like 1/16th throttle, depending on how deep the notch in the corner of the slide is. I've seen it called the "pilot bypass orifice". Kind of gross sounding.