Fuel Line Service for the 2014 Suzuki KingQuad 500AXi 4x4

Shop parts for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

A fuel hose replacement goes smoothly or badly depending almost entirely on what you did before the first clamp came loose. Gather the right hose, the right clamps, and the right safety setup, and the 2014 KingQuad 500AXi is a straightforward afternoon job. Start improvising halfway through with a pressurized injection circuit open on the bench, and it turns into a mess in a hurry.

Laying Out Parts and Protection First

Everything on this list earns its place:

  • Nitrile or rubber gloves, plus eye protection for the moment a fitting lets go unexpectedly
  • Fuel hose rated for injection pressure in the correct inside diameter for this KingQuad, not soft carburetor hose
  • New clamps in the matching style and size, or a clamp kit that covers your options
  • A quick–disconnect release tool if the fitting at the pump plate uses a locking collar
  • Line–clamping pliers, which take the place of the fuel valve this model does not have
  • An approved fuel container, a catch pan, and more rags than you think you need
  • A socket set and a plastic trim tool for the seat and side panels

Set up outdoors or with the overhead door completely open. Gasoline vapor is heavier than air and creeps along the floor, which is why a low cross–draft protects you and a cracked window near the ceiling does not. Move space heaters, extension–cord lights, and anything with a pilot flame out of the area before you break a fitting loose.

Injection, Not Carburetion

The AXi in the model name confirms Suzuki electronic fuel injection on your 2014 machine. Practically, that removes a few familiar landmarks. There is no petcock under the tank to shut off, no float bowl to drain, and no gravity feed you can simply interrupt. Fuel comes from a pump module mounted inside the tank, travels through the supply hose, and arrives at the throttle body under pressure that persists after shutdown. Where a carbureted quad gives you a valve and simple barbs, an injected KingQuad asks you to relieve pressure first and may greet you with a self–locking coupler at the tank instead of a clamp.

Why Hose Fails on a Machine This Age

Rubber loses its softeners over time, and every heat cycle from the 493cc single accelerates the loss. What was flexible hose at the dealership becomes stiff, then glassy, then cracked, usually starting in the tightest bend. Dry, low–humidity climates push the process faster because ambient air keeps pulling moisture out of the hose wall.

Ethanol–blended fuel does its own damage from the inside. The alcohol content attracts water and slowly attacks the liner, and fuel left sitting between seasons leaves gum behind at the fittings. The result is a hose aging in two directions at once, which is why replacement on a KingQuad from 2014 is a reasonable call even when the outside still looks presentable.

Symptoms You Should Not Ride Past

Any of these deserves attention before the next trail day:

  • A puddle or wet streak beneath the tank area after the quad has been parked
  • A gasoline smell that lingers, often the first sign on a pressurized system
  • Cracking, chalkiness, or swelling visible on the hose surface
  • A hardened section that no longer compresses when pinched
  • Engine behavior that mimics an empty tank, including bogging, a lean stumble, or hesitation under load

Taking the Old Hose Off

Relieve pressure to begin. Pull the fuel pump fuse or relay, crank until the engine stalls, turn the key off, and disconnect the battery negative cable. Remove the seat and the plastics that stand between you and the tank fitting, then trace the hose to the throttle body so you know both endpoints. Slide the catch pan into position and drape a rag over each connection as you open it, since fuel remains in the hose even after pressure is gone.

Move clamps back along the hose before disturbing the fittings. Locking couplers come apart when both tabs are pressed evenly and the connector is pulled straight; prying sideways cracks aged plastic. If the hose has varnished onto a barb, twist it gently to break the bond, and slit it lengthwise with a blade rather than yanking if it holds fast. Record the routing before the hose is fully out. On this selectable 4x4, the line passes clearance points near front differential hardware and additional frame crossmembers, so reinstalling it along a slightly different path is an easy mistake to make.

Getting the New Line In Place

Cut the replacement to the same length as the original. Push each end fully onto its barb, dry, until it seats against the shoulder. Nothing lubricated belongs on a fuel fitting, because grease or silicone on that sealing surface gives pressurized fuel a route past the clamp, and the resulting weep can take weeks to show up. Soften a tight hose end in hot water for a few seconds if you need help.

Set new clamps just behind the raised bead, tightening evenly and firmly without crushing the rubber. A self–locking quick–connect needs no clamp; push until it clicks, then pull to verify the latch engaged. Reseat the hose in every factory clip so it stays clear of the front driveline and hot exhaust.

Leak Check and Final Assembly

Refit the fuse, Reconnect the battery, and cycle the key on and off several times without cranking. Each cycle primes the pump and pressurizes the hose while the engine sits quiet, which is the cleanest possible condition for a leak inspection. Wipe both joints, start the engine, and check once more at idle and after a few minutes of warm running.

Worth knowing as you close things up: on the injected 500AXi the fuel filter is part of the in–tank pump assembly rather than an inline item on the visible hose. If fuel delivery still feels lazy after a clean hose install, that filter inside the tank is where the investigation continues.

Related Shopping Categories

Shop Fuel Lines for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

Shop Fuel Line Clamps for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

Shop Petcocks for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

Shop Fuel Filters for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

Shop Fuel Stabilizer for a 2014 Suzuki King Quad 500AXi 4X4 ATV.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your ATV's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.