2011 Husaberg FE570 Keeps Stalling – Troubleshooting Fuel System
Shop parts for a 2011 Husaberg FE570 Dirt Bike.Why the 2011 Husaberg FE570 can stall and run poorly
The 2011 Husaberg FE570 is a high-displacement four-stroke enduro machine. Its electronic fuel delivery and related plumbing are central to reliable starting, steady idle, and smooth throttle response. Fuel-system issues commonly produce symptoms that look like mechanical or ignition problems: hard starts, cutting out at idle, stumbling on acceleration, or sudden stall under load. Focusing on the fuel system helps isolate causes that are straightforward to inspect and fix with basic tools.
Key fuel components and what they do
- Fuel tank & venting – stores gasoline and must vent to allow steady flow.
- Fuel lines & fittings – carry fuel without restrictions or air leaks.
- In-tank or inline filter(s) – catch debris; clogging limits flow.
- Fuel pump & regulator – maintain required pressure for the injectors.
- Fuel injectors – meter and atomize fuel at the intake; spray pattern and flow matter.
- ECU & sensors (TPS, MAP/air temp) – control timing and injector pulse, but poor fuel delivery will still manifest as stalling.
Common EFI-specific causes on the FE570
- Fuel pump weakness or intermittent power – reduced pressure causes hesitation and stalls, especially under load.
- Clogged in-tank or inline filter – partial blockage can allow some running but cause stalling when demand rises.
- Dirty or partially clogged injector – uneven spray results in poor idle, misfire, or cutoff during throttle changes.
- Poor electrical connections – corrosion or loose connectors at pump, injector, or harness mimics fuel starvation.
- Restricted tank outlet or collapsed lines – physical restriction reduces flow even if pump is fine.
- Vapor lock/heat-related cutouts – hot restarts after hard riding can worsen symptoms if venting or pump pressure is marginal.
Quick baseline checks you can do
- Confirm fresh fuel – drain a bit from the tank into a clear container. Old, varnished fuel can gum pump and injector passages.
- Inspect fuel lines & clamps – look for kinks, soft spots, cracks, or loose clamps. Replace any suspect hose.
- Check the tank vent – open the tank and listen or blow through the vent hose if accessible. A blocked vent can cause a collapsing vacuum and erratic fuel flow.
- Examine the fuel filter(s) – remove inline filters and inspect for debris. Replace if any discoloration or buildup is visible.
- Verify steady fuel flow from tank – remove the line at a safe place and cycle the pump briefly to confirm steady fuel delivery to a catch container.
Measuring pump performance and injector behavior
Testing fuel pressure is the most direct EFI check. With the appropriate adapter and a fuel-pressure gauge, confirm the pump maintains pressure while cranking and under light throttle. Pressure that drops quickly or is below specification is a sign of a weak pump, clogged filter, or leaking pressure regulator.
Injector condition can be evaluated by listening with a mechanic's stethoscope while the engine is running – a consistent click indicates electrical activity. For deeper checks, a spray pattern and flow bench or professional ultrasonic cleaning will reveal restricted nozzles. If you can't test, replacing the injector or having it serviced is a practical next step.
Practical fixes you can perform
- Replace fuel filter(s) and fuel lines with quality replacements designed for high-pressure EFI duty.
- Clean or replace a clogged injector – a can of injector cleaner added temporarily to fuel may help marginally, but flow cleaning or replacement is more reliable.
- Check and secure all electrical connectors at the pump and injector. Remove corrosion with contact cleaner and a small pick if needed.
- Confirm tank venting is clear – replace cracked vent hoses and ensure the vent path isn't routed where heat could melt or collapse it.
- Replace a weak fuel pump – pumps can lose internal pressure and produce intermittent stalling. Swap in a new pump if pressure testing fails.
- Drain stale fuel and refill with fresh, stabilized gasoline to remove varnish-related fouling over time.
Situations where the problem mimics stalling but isn't fuel delivery
Low injector pulse from a faulty ECU connection, a failing crank or cam position sensor, or an out-of-adjustment throttle body/idle control can imitate fuel-starvation symptoms. However, EFI-related electrical faults often accompany odd behaviors during startup and electrical testing can quickly confirm or rule them out.
Heat-related issues – vapor lock and post-ride stalls
After hard rides, heat soak combined with marginal pump pressure or poor venting can cause hesitation or sudden stall on restart. Allow the bike to cool briefly, check vent hoses and fuel line routing away from exhaust heat, and prioritize pump/filter condition to reduce these occurrences.
Step-by-step troubleshooting checklist
- Try fresh fuel first – drain and refill.
- Inspect vent, tank outlet, and fuel lines for restriction or damage.
- Replace inline/in-tank filter(s).
- Verify steady fuel flow by briefly operating the pump into a container.
- Measure fuel pressure while cranking/running; compare to expected range for the FE570.
- Listen for injector pulse and consider professional cleaning or replacement.
- Secure all pump/injector electrical connectors and check for voltage at the pump with the key on.
When to seek professional help
If pressure checks fail, injector cleaning doesn't restore smooth running, or electrical diagnostics are beyond your tools, a trained technician can perform bench tests, replace the pump or injectors, and use diagnostic equipment to read ECU inputs and fuel trims. For routine maintenance, replacing filters and fuel lines is an effective first-line fix riders can handle themselves.
Final notes
Focusing methodically on the FE570's tank, venting, lines, filters, pump, and injectors will resolve the majority of fuel-related stalling issues. Take a systematic approach: confirm fresh fuel and secure connections, then move to pressure and injector tests. With these steps you can restore reliable starting, stable idle, and responsive throttle on your 2011 Husaberg FE570.
Related Shopping Categories
Shop Fuel System Parts for a 2011 Husaberg FE570 Dirt Bike.
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Shop Fuel Filters for a 2011 Husaberg FE570 Dirt Bike.
Shop Tools & Maintenance for a 2011 Husaberg FE570 Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle'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.
