Main Jet #105 for SI Carbs for Scooters & Mopeds
ITEM# TT-25684
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 #105 for SI Carbs in Scooters and Mopeds
This #105 main jet has a cone shape and is built for SI carburetors used on a range of scooters and mopeds. It controls how much fuel reaches the engine, so its size matters when tuning performance. You can find it among our scooter carburetors & jets, which help fine-tune fuel delivery for smoother efficiency. A larger jet number lets more fuel pass through.
Getting to Know Jet Sizes
Main jets are offered in sizes ranging from 82 to 165. Most vintage Vespa models generally run jets in the 85 to 116 range. If the engine has been modified for more power, a bigger jet may be needed to supply the extra fuel. Choosing the correct size can help your vehicle run better overall.
Things to Keep in Mind When Fitting
Swapping the main jet may take a bit of experimenting before you reach the best result. The swap itself is simple, but matching fuel flow to any engine changes deserves attention. For help with this adjustment, look through available guides on jetting.
Specifications
- Size: 105
- Position: Main jet stack
- Fits: SI carburetors, main jet stack, size #105
Fitment
How to choose: Check the number stamped on your existing main jet (this one is #105) and select the size your engine requires.
Shop more: Scooter Carburetors & Jets · Scooter Parts
Reviews
