Carburettor Main Jet Cutoff

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Carburettor Main Jet Cutoffs

Discover everything you need to repair your car's carburettor with carburettor main jet cutoffs from GSF Car Parts. We offer main jet cutoffs to suit a range of vehicles.

To find the best product for your vehicle, enter the make and model or registration details into the search tool, and we'll take care of the rest.

What is a Carburettor Main Jet Cutoff?

A carburettor main jet cutoff is designed to eliminate backfiring on hard deceleration. When you decelerate hard, it creates a high vacuum which activates the valve. This activation reduces the airflow, which, in turn, richens the mixture. This slightly richer mixture eliminates backfiring.

A broken main jet cutoff won't stop backfiring, so it's imperative you get it replaced quickly.

What Other Car Parts do we Stock?

For those of you with classic, vintage, and pre-injection vehicles, we have a fantastic selection of carburettor spares, including complete carburettors, vapour traps, flanges, diaphragms, choke actuators and much more! Leading carburettor specialists supply all our parts to get your carburettor working smoothly again.

We stock a full range of car parts and spares for other repairs or servicing on your car, from service, engine, transmission, exhaust, electrics, fuel and emissions, braking systems, and cooling and heating parts. All are sourced from our trusted and reliable auto partners.

Shop Throttle Control Springs at GSF Car Parts Online and In-Store

All our throttle control springs are from trusted brands in the motoring industry, so you can count on them to be reliable and of excellent quality. Plus, our low-price promise means you can always expect great value too.

We offer free UK delivery on all online orders over £25, plus 60-day returns*. We also know you want to get your car up and running as soon as possible, which is why we offer a Click and Collect service that allows you to get your throttle control spring in just an hour.

So, buy throttle control springs from us with confidence today. Or if you’re close to one of our 180 store locations across the UK & Ireland, drop by. Our experienced staff will be able to direct you to the correct part for your vehicle.