Some vintage Vespas came with plugged idle jets, which have no air hole. These are available in sizes 42 and 50.

Jetting is something that takes trial and error. See our blog of jetting instructions for more info. .

Idle Jet #42, SI Carbs

Dellorto SI Jets

  • SKU150048
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Retail Price: $7.00
Your Price: $7.00
In Stock
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