| Listed in parts books | Not catalogued by year yet |
PILOT JET #25
A #25 pilot jet for tuning the low-speed/idle fuel circuit on a carburetor.
This is a pilot jet, size 25, for a carburetor's low-speed circuit. The pilot jet controls fuel delivery at idle and just off idle, before the main jet takes over as the throttle opens further. Swapping pilot jet sizes is one of the standard ways to fine-tune idle quality and low-speed response on a carburetor that's running rich or lean at the bottom of the throttle range.
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We don't have detailed catalog history on this particular part number beyond the size designation, so if you're not sure this is the right jet for your carb body, give us a call and we can talk through what you're working with before you order.
Keep a small stock of different pilot jet sizes on hand if you're tuning a carb - it's a lot easier to try a few sizes than to guess right the first time.
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