Check the spark plug

If your leaf blower runs on petrol and won’t start, the spark plug might be faulty. Typically it needs to be changed every year but can be done sooner with high usage. • Start by unclipping and giving it a clean using plug-specific cleaner and a wire brush. Dirt build-up of old carbon and oil or a disconnection can stop the spark plug from igniting properly.  • If cleaning doesn’t help, the plug may be too old, worn or out of shape to function. Replace the plug with a fresh one.

As our gardening expert, Adam says, fuel is often the source problem for a petrol-based leaf blower that won’t start. Try the following to fix fuel-related issues:

  1. Check the oil-to-gas ratio  Firstly, as garden care expert Adam mentions, the wrong ratio of oil to gas in a 2-cycle leaf blower can cause the engine to seize up and could be the reason your leaf blower won’t start. Check the manufacturer’s manual for your model to find out the correct ratio. Drain the old fuel and replace it with the correct ratio mix. 
  2. How long has the fuel been in your machine?  Old fuel, especially leftover from last season, can become gunky and stale and won’t work when used. Change the fuel for fresh and consider whether the carburetor may also need cleaning to unclog from old fuel if the consistency has changed.
  3. Clean the fuel filter The fuel filter removes impurities from the fuel line before the fuel enters the engine. This can also become clogged up over time and prevent enough fuel from getting to the engine. This can mean it can’t start up. Remove and clean it with a specific cleaner or replace it entirely to fix this problem.

Advice for electric leaf blowers 

If your leaf blower runs on electric power then the reason it won’t start is likely to do with the wire connection or the motor. In either case, the best way to resolve this is to take it to an electric machinery repair specialist or contact the manufacturer to see if your warranty covers repair or replacement. 

Leaf blower won’t start after troubleshooting? 

If your petrol-fuelled leaf blower won’t start after trying the remedies above, we would recommend following Adam’s expert advice and taking it to the manufacturer. Most reputable retailers will honor the warranty provided with the sale and in most cases, you will get a refund, repair or replacement within a certain period of time if you have proof of purchase.  Alternatively, contact a local small engine repair specialist for help with mechanical issues that you can’t easily resolve yourself.  Discover more guides for the garden… Best pressure washers (opens in new tab) Best snow blowers (opens in new tab) Best chainsaws (opens in new tab) Best patio heaters (opens in new tab) Best inflatable hot tubs (opens in new tab)

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