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Price: 8.06 GBP
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Weber (Replacement) 40 Dcoe Choke Tube 34mmThe main venturi is primarily is the first step in determining the appropriate jetting for your carburettor/engine combination. The smaller the venturi, the higher the air speed entering the engine. This equals more low end torque and response. Larger venturi will flow more volume and have the potential to create more top end power, however this is often at the expense and low-mid range driveability therefore the venturi size needs to be evaluated for your particular application.Please note:- A change in venturi size will most certainly result a change in main jet, air corrector or idle jet.
Product information updated: 09 Nov 2026
Disclaimer: Product information, including title, description, and images, is sourced/provided by our affiliate partner: The Green Spark Plug Company.
Buy from The Green Spark Plug Company
Disclaimer: Some of the links on this website are affiliate links, meaning we may earn a commission if you click through and make a purchase. This comes at no additional cost to you.
By clicking the button above, you acknowledge that you will be redirected to a third-party website and agree to their terms and conditions.
Product information, including title, description, and images, is sourced/provided by our affiliate partner: The Green Spark Plug Company.
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Refer a friend and earn 0.05 CEC when they click the link, plus an additional 1.00 CEC if they register. Share this Product and boost your earnings together!