Main Jet #42 for SHA/SHB Carbs for Scooters & Mopeds
ITEM# TT-26100
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 #42 for Vespa Small Frame Scooters and Mopeds
This main jet suits Vespa small frame scooters that use 16mm and 19mm carburetors, including PHBG models. It handles fuel delivery and helps the engine run as it should during use. Found within our carburetor and jet range, this part supports steady engine operation and efficiency. Several sizes are offered, and this one is a #42, which fits particular tuning requirements.
How the Main Jet Works
The main jet controls the fuel-to-air ratio when the throttle is opened wider, which is when the engine is working hardest. This keeps the engine responsive under load. If you are changing your scooter's carburation, choosing the right main jet is key to getting the performance you are after.
Fitting Notes
Swapping the main jet is a simple job that most scooter owners can handle. The new jet goes straight in place of the existing one in the carburetor. Getting the jetting dialed in may take a bit of trial and adjustment before the scooter runs as smoothly and efficiently as you want.
Specifications
- Size: #42
- Position: Main jet
- Fits: Small Frame Vespa scooters with 16mm and 19mm SHA/SHB carbs, and PHBG carbs
Compatibility
Compatible with:
- Vespa small frame (16mm and 19mm SHA/SHB carbs)
- PHBG carbs
Selection tip: Only install this jet in a carburetor that has a main jet slot, and make sure its size matches your existing jet number, which is #42 for this part.
Browse further: Scooter Carburetors & Jets · Scooter Parts
Reviews
