Main Jet #160, SI Carbs for Scooters & Mopeds
ITEM# TT-26271
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Description
Main Jet #160 for Vintage Vespas and Performance Mopeds
The Main Jet #160 plays a key role in metering fuel inside your scooter's engine. This small, cone-shaped piece sits in the lower part of the jet stack. It is built to suit a range of engine changes and fuel demands. Among the scooter carburetor and jet parts, it is one that can make a noticeable difference to performance, particularly on modified engines.
How Main Jets Work
The main jet sets how much fuel gets mixed into the air entering the engine. Its bore size determines how much fuel can pass through. A larger jet lets more fuel in, which can help performance on modified setups. Dialing in the correct jet usually takes some testing before you get the best result.
Things to Check When Replacing
Before swapping a main jet, think about what your engine actually needs. If your moped or scooter has been modified, the jet size may need to change to match. For guidance on jetting, look through tuning guides, which offer useful tips for getting the most out of your machine.
Specifications
- Size: #160
- Position: Main jet
- Fits: Main jet #160 for SI carburetors on scooters and mopeds
Fitment
How to choose: Check the number stamped on the jet against the size your engine requires. This is a #160 main jet, and getting the jetting right takes trial and error.
Shop more: Scooter Carburetors & Jets · Scooter Parts
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