Expert Guide: How to Start a Portable Generator That Has Been Sitting for Months

You’ve got your trusty portable generator, ready to power your home or campsite in case of an emergency. But what happens when it’s been sitting idle for a while? You might find yourself facing a stubborn engine that refuses to fire up. Don’t worry, we’ve got you covered! This guide will walk you through the steps on how to start a portable generator that has been sitting, ensuring you’re prepared for any power outage.

The Importance of Regular Maintenance

Before diving into the starting process, it’s crucial to understand that regular maintenance is key to keeping your generator in tip-top shape. A generator that has been sitting for a prolonged period can develop various issues, including:

• Stale Fuel: Gasoline degrades over time, forming gum and varnish that can clog fuel lines and injectors, hindering proper fuel flow.
• Battery Discharge: Batteries lose charge naturally, and a dead battery can prevent the generator from starting.
• Corrosion: Moisture and humidity can cause corrosion on metal parts, leading to malfunctions.
• Stuck Components: Lubricating oil can thicken, causing moving parts to stick and seize.

Step 1: Safety First!

Safety should always be your top priority when working with any machinery, including generators. Follow these safety precautions:

• Choose a Well-Ventilated Area: Never operate a generator indoors or in enclosed spaces. Carbon monoxide fumes are deadly.
• Wear Protective Gear: Wear safety glasses, gloves, and closed-toe shoes to protect yourself from potential hazards.
• Avoid Contact with Moving Parts: Keep your hands and body away from rotating parts while the generator is running.
• Disconnect the Generator: Always disconnect the generator from any load before starting or performing maintenance.

Step 2: Inspect and Prepare Your Generator

Before attempting to start your generator, it’s essential to give it a thorough inspection:

• Check the Fuel: If the generator has been sitting for more than a few months, it’s best to drain the old fuel and refill it with fresh, stabilized gasoline.
• Inspect the Battery: Ensure the battery terminals are clean and free of corrosion. If the battery is old or discharged, consider replacing it.
• Check the Oil: Check the oil level and change it if necessary. Use the appropriate oil recommended by the manufacturer.
• Examine the Spark Plugs: If the generator hasn’t been started in a long time, the spark plugs may be fouled. Remove them and clean or replace them if needed.
• Inspect the Air Filter: A dirty air filter can restrict airflow and hinder engine performance. Clean or replace it as needed.

Step 3: Prime the Engine (If Applicable)

Many portable generators have a primer bulb that helps introduce fuel into the carburetor. Follow these steps to prime the engine:
1. Locate the Primer Bulb: It’s usually a small, rubber bulb located near the carburetor.
2. Press the Primer Bulb: Repeatedly press the primer bulb several times until it becomes firm. This will fill the carburetor with fuel.

Step 4: Start the Generator

Now, you’re ready to start your generator. Here’s how:
1. Turn the Fuel Valve On: Locate the fuel valve (often a lever or knob) and turn it to the “On” position.
2. Set the Choke (If Applicable): Some generators have a choke lever. If your generator has a choke, move it to the “Choke” position. This will help enrich the fuel mixture for easier starting.
3. Turn the Ignition Key: Insert the ignition key and turn it to the “Start” position.
4. Pull the Recoil Starter: Grasp the recoil starter handle and pull it firmly and quickly.
5. Release the Choke (If Applicable): Once the engine starts, gradually release the choke lever to allow the engine to run smoothly.

Step 5: Let the Generator Warm Up

After the generator starts, allow it to run for a few minutes to warm up. This will help ensure the engine is running properly and prevent potential damage.

Step 6: Connect a Load

Once the generator is warmed up, you can connect a load to test its performance. Start with a small load, such as a light bulb, and gradually increase the load to ensure the generator can handle it.

Step 7: Monitor and Maintain

After successfully starting your generator, it’s important to monitor its performance and perform regular maintenance to ensure its continued reliability.

• Check the Oil Level: Check the oil level regularly and top it off as needed.
• Monitor the Engine: Listen for any unusual noises or vibrations.
• Inspect the Fuel Lines: Check for any leaks or cracks in the fuel lines.
• Clean the Air Filter: Clean or replace the air filter as needed.
• Inspect the Battery: Check the battery terminals for corrosion and ensure the battery is properly connected.

Time to Power Up!

Starting a portable generator that has been sitting for a while can be a little daunting, but following these steps will make the process much smoother. Remember, regular maintenance is key to keeping your generator in optimal condition, ensuring it’s ready to provide reliable power when you need it most.

Quick Answers to Your FAQs

Q: How often should I run my portable generator?
A: It’s recommended to run your generator for at least 30 minutes every month to prevent fuel from degrading and keep the engine in good condition.
Q: What if my generator won‘t start after following these steps?
A: If your generator still won’t start, there could be several reasons, such as a faulty spark plug, a clogged fuel filter, or a dead battery. It’s best to consult your owner’s manual or contact a qualified technician for assistance.
Q: What type of fuel should I use in my portable generator?
A: Most portable generators require unleaded gasoline with a minimum octane rating of 87. It’s important to use fresh, stabilized gasoline to prevent fuel degradation.
Q: How long can I run my portable generator continuously?
A: The runtime of a portable generator depends on its size, load, and fuel capacity. Consult your owner’s manual for specific runtime information.
Q: Can I connect my generator directly to my home’s electrical system?
A: It’s crucial to use a transfer switch to safely connect your generator to your home’s electrical system. A transfer switch prevents backfeed, which can be dangerous for both you and utility workers.