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Idle Jet #42, SI Carbs
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. .
| SKU# |
150048
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Not sure if this part will work on your bike? Need to determine the correct fit? Call 1-888-968-3772
