Fuel Line Replacement Steps for the 2025 Sportsman Touring 570
Shop parts for a 2025 Polaris Sportsman Touring 570 ATV.
Even a current-model machine benefits from an owner who knows how its fuel system is put together. The 2025 Sportsman Touring 570 uses the electronically injected ProStar 570 single, which means an in-tank electric pump keeps the supply hose pressurized whenever the key is on. There is no petcock to close and no float bowl to drain, so the approach differs meaningfully from what an older carbureted quad would require. Whether you are replacing a damaged line now or planning ahead, the sequence below is the one to follow.
Recognizing a Line That Needs Attention
Fuel hose gives warning before it quits. Watch for a damp patch or puddle beneath the machine after it has been parked, a gasoline smell around the tank that will not fade, or visible crazing and chalkiness on the hose surface. Pinch the line at several points; a section noticeably stiffer than the rest has already lost its flexibility. A dark ring of dirt gathered at a fitting is dried fuel from slow seepage.
Engine behavior is the other half of the diagnosis. Bogging under load, a stumble when you snap the throttle, or lean-feeling surging at steady speed all indicate the engine is not getting the fuel volume it wants. Because this system runs under pressure, a small breach often atomizes and evaporates rather than dripping, so a persistent smell over a dry floor still means there is work to do.
Why Fuel Hose Deteriorates
Two processes work against the rubber simultaneously. Heat cycling next to the engine drives out the plasticizers that keep the hose pliable, and as the wall hardens it stops flexing with the frame. The long two-up Touring chassis generates plenty of movement over rough terrain, which turns that stiffness into hairline cracks at bends and clamp locations. Arid climates make the drying worse because there is no ambient humidity to slow it.
Ethanol-blended fuel is responsible for the internal half. E10 absorbs moisture and gradually attacks the hose's inner liner, so a machine that sits for a few months with fuel in the system can develop a soft, degrading interior while the outside still looks new. That is why the age of the hose is worth tracking independently of how it appears.
Assembling Tools and Working Safely
- Nitrile or rubber gloves — gasoline strips skin oils on contact
- A drain pan and a sealed container rated for fuel
- Replacement hose in the original inside diameter, rated for fuel-injection pressure
- Fresh clamps matched to your fittings, or a small clamp kit
- Line-clamping pliers, which stand in for the petcock this model lacks
- Razor knife, rags, a small flat screwdriver, and sockets for the seat and panels
Ventilation is a genuine safety matter, not a formality. Gasoline vapor is heavier than air and settles at floor level, right where extension cords and heaters usually sit. Roll the machine outside or open the overhead door fully, pull any pilot-flame appliance out of the space, hold off on grinding or welding, and keep an extinguisher close at hand.
Disconnecting the Existing Line
Depressurize before you loosen a thing. Pull the fuel pump fuse, crank the starter until the engine stalls, turn the key off, then disconnect the negative battery cable. Take off the seat and enough bodywork to see the tank outlet and follow the hose forward to the throttle body.
Slide the pan underneath and lay a rag over the joint you are opening, because a bled line still holds fuel. Move worm-gear or spring clamps well back along the hose before disturbing the fitting. A locking quick-connect releases when you press its tabs squarely and pull straight off, never at an angle, since those collars can crack. Break each barb loose with a gentle twist rather than a hard pull, and if a hose has bonded itself in place, split it lengthwise with the razor and peel it off.
Take note of the routing before the old piece is entirely free. With a longer wheelbase and On-Demand AWD hardware forward, this chassis routes the hose past additional brackets and clearance points compared to a compact 2WD quad. Photograph each clip.
Fitting the New Line and Verifying the Work
Match the original length exactly when you cut. Excess slack chafes or drifts toward the exhaust; a short piece keeps both fittings under load. Seat each end fully onto its barb, dry, until it bottoms against the shoulder. Grease, oil, and silicone stay off the fittings entirely — lubricant on a sealing surface is exactly how pressurized fuel finds a path past the clamp. Soften a stiff end in hot water rather than forcing it.
Set new clamps just behind the raised bead on each fitting and tighten them evenly, firm but not cutting into the rubber. A self-locking quick-connect pushes home until it clicks and needs no clamp; confirm engagement with a firm tug. Reseat the hose in every original clip so it stays clear of the driveline and hot surfaces.
Reinstall the fuse, Reconnect the battery, and cycle the key on and off several times without cranking so the pump pressurizes the line while the joints are dry. Wipe both connections and inspect closely for beading. Start the engine, let it idle a few minutes, check again as heat builds, and turn the handlebars lock to lock to load the routing. One closing note on this platform: the fuel filter lives inside the tank as part of the pump module rather than inline on the visible hose, so persistent fuel starvation after a clean install points there rather than at more hose work.
Related Shopping Categories
Shop Fuel Lines for a 2025 Polaris Sportsman Touring 570 ATV.
Shop Fuel Line Clamps for a 2025 Polaris Sportsman Touring 570 ATV.
Shop Petcocks for a 2025 Polaris Sportsman Touring 570 ATV.
Shop Fuel Filters for a 2025 Polaris Sportsman Touring 570 ATV.
Shop Fuel Stabilizer for a 2025 Polaris Sportsman Touring 570 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.