Air Hoses, Lines & Pipes

About Air Hoses, Lines & Pipes

An intake boot is the rubber sleeve that joins the carburetor to the engine, and the hoses and flanges in this small category keep air moving along that path without leaks. When a boot cracks, the engine takes in air that never passed the carburetor, which can cause a rough idle, hesitation, stalling or a lean mixture.

The listings here are mostly replacement intake boots, sold by make, including Arctic Cat, Polaris, Can-Am and Yamaha, and carburetor mounting flanges, which are sized by number and listed for Honda in sizes from 26 to 38. Match the boot to your model and years, because the shape, length and bore differ. A flange has to match the carburetor's size, so read the number and check it against your carburetor. When you fit a new boot, replace worn clamps, make sure the boot is seated and not twisted, and check for leaks after the first ride.

Brands in this category include WSM, Quad Logic and Moose Offroad. If you are working in this area, you may also need Carburetors, Carburetor Parts or Air Filters. The whole group is Air Intake & Fuel Delivery. Pick your machine in the Ride Finder at the top of the page.

FAQs on UTV and ATV intake boots and flanges

How can I tell if my intake boot is cracked?

Look for cracks, splits or hardening, especially around the bends and where the clamps sit, and flex the boot gently to open any splits. A boot that is damaged can cause a rough idle, hesitation, stalling or a lean-running engine. Replace a boot that shows damage.

Do I need new clamps with a new intake boot?

Replace clamps that are rusted, stretched or weak, because a loose clamp lets air leak in. Read the listing to see whether clamps are included. Tighten them evenly, and check the boot is seated and not twisted.

What does the size number on a carburetor flange mean?

The number gives the flange size, which has to match the carburetor it mounts to. The Honda flanges here are listed in a range of sizes. Check the size marked on your carburetor or in your manual before ordering.

Can I use a universal intake boot?

Boots are shaped and sized for particular machines, and the listings here are by make. A boot that is the wrong length or bore will not seal or may kink. Choose one listed for your model and years.