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Main Jet #118; SI Carbs

Original price was: $4.80.Current price is: $3.30.

60 in stock

SKU: 132368 Category:

Description

Main Jet 118 For Si Carbs

This is the small, cone-shaped jet at the bottom of the main jet stack. They come in various sizes ranging 82-165. Most vintage Vespas will use one in the 85-116 range, though performance-modded engines can drink a lot more gas and use much bigger jets. The larger the number, the more fuel will flow through.

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