Main Jet (#84) Del 'orto SI Carburetors for Scooters & Mopeds
ITEM# TT-26625
Guarantee Safe Checkout
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Main Jet for Del 'orto SI Carburetors in Scooters and Mopeds
This #84 main jet is made for Del 'orto SI carburetors used on a range of scooters and mopeds. It controls how much fuel reaches the engine, which affects how well it runs. Like many scooter carburetors & jets, it is simple to swap out during routine service. Engines that have been modified for more power may call for larger jets, while older models commonly use jets in the 85-116 range.
Getting to Know Jet Sizes
Jet size sets the amount of fuel that passes through to the engine. Available sizes run from 82 to 165, and this #84 provides a moderate fuel flow suited to particular setups. When tuning a classic Vespa or working on performance, picking the right jet makes a real difference to your build.
Fitting and Tuning
To change the main jet, take out the existing one and seat the new jet in the same spot. You may need a few attempts before the engine behaves the way you want. If you want to dial in your setup further, look through other guides covering jetting for step-by-step details.
Specifications
- Size: #84
- Position: Bottom of main jet stack
- Fits: SI carburetors (main jet stack, bottom position), #84 size
Fitment
How to choose: Make sure the jet matches your carburetor's main jet stack. Sizes span 82-165, and most vintage Vespa engines run 85-116.
Shop more: Scooter Carburetors & Jets · Scooter Parts
Reviews
