As spring approaches, it’s time to dust off your petrol lawnmower and get it ready for action. But what if your mower, which worked perfectly last season, now refuses to start? One of the most common causes is stale fuel left sitting in the tank over winter. Let’s explore why using fresh petrol is essential and what steps you can take if old fuel has caused issues.
Why Stale Fuel is a Problem
Petrol begins to degrade after just 30 days, forming sticky deposits that clog up key components like the carburettor and fuel lines. This breakdown results in poor combustion, making it difficult—or impossible—for the engine to start.
If your lawnmower won’t fire up after winter storage, chances are stale fuel is to blame. Even small amounts of old petrol can cause significant performance issues.
How to Fix Stale Fuel Issues
- Drain the tank: Carefully remove any remaining old fuel and dispose of it responsibly at a recycling facility.
- Clean the carburettor: Deposits from stale fuel may require a thorough cleaning of the carburettor.
- Refill with fresh fuel: Use high-quality unleaded petrol. Adding a fuel stabilizer can help keep petrol fresher for longer.
- Prime and start: Prime the engine and attempt to start the mower.
Preventative Tips for Winter Storage
- Run the mower dry: Let the engine run until it uses up all the fuel before storing it for winter.
- Add a fuel stabilizer: If draining isn’t possible, mix a stabilizer with fresh fuel and run the mower briefly to circulate it.
Need Help? Find a Local Dealer on MowerPro
If you’re unsure how to resolve fuel-related issues or need professional servicing, search for your nearest lawnmower dealer on MowerPro. Their expert technicians can help get your mower back in top condition.
Get Ready for a Great Season Starting the mowing season with fresh fuel and a well-maintained mower will ensure smoother operation and better results. Here’s to a successful season and a beautiful, healthy lawn!
