How to Start a Snowblower: The Complete Starting Guide

Operation Guide

How to Start a Snowblower: The Complete Starting Guide

By Wildwood Repair Team Reviewed by a certified technician Updated August 5, 2026 8 min read
Quick Answer
To start a cold gas snow blower, turn the fuel valve on, set the choke to full, press the primer bulb two or three times, move the throttle to fast, turn the ignition switch or key to on, then either press the electric start button (plugged into a 120 volt outlet) or pull the recoil cord firmly. Once it runs, ease the choke off over the next minute. For a warm restart, skip the primer and use little or no choke.

A snow blower that has sat since last winter almost never starts on the first pull, and the reason is usually the starting sequence rather than a broken machine. Gas snow blowers all follow the same basic order of fuel, choke, primer, throttle and ignition, and getting that order right the first cold morning of the season saves a lot of frustration. This guide walks the full sequence for single stage and two stage machines, covers warm restarts, and points to model specific steps for Ariens, Toro and Craftsman units. More than 10,000 driveway repairs since 2019 stand behind every step.

The Controls You Need to Find First

Before the first storm, locate five controls. Nearly every gas snow blower has them, though the labels and positions vary by brand.

  • Fuel shutoff valve, usually under or beside the tank, marked on and off.
  • Choke, a lever or dial marked full, half and run, or with a closed and open symbol.
  • Primer bulb, a soft rubber button that pushes a shot of fuel into the carburetor.
  • Throttle, often a rabbit and turtle symbol for fast and slow.
  • Ignition, a key you turn or push in, or a simple on and off switch.

Electric start models add a starter button and a socket for a 120 volt extension cord. Battery start models have an onboard battery and a button instead.

Starting a Cold Snow Blower Step by Step

If it fires and dies, the choke came off too soon. Return it to half and give the engine another thirty seconds to warm before opening it fully.

Warm Restarts Are Different

An engine that ran a few minutes ago is already warm and flooded with fuel, so the cold sequence will flood it. For a warm restart, leave the primer alone and set the choke to run or half, not full. Then turn the ignition on and start as normal. Priming a warm engine is the single most common way owners flood a snow blower on the driveway.

Single Stage Versus Two Stage Starting

The sequence is the same, but the feel differs. Single stage machines are lighter with smaller engines, so the recoil pulls easily and they warm fast. Two stage machines have larger engines and often electric start, which matters on a cold morning when a big engine is stiff to pull by hand. If your two stage unit has electric start, use it for the first start of the day. It spins the engine faster and more consistently than a cold arm can.

Model Specific Starting Steps

Control layouts differ enough between brands that the details are worth a dedicated walkthrough. We have step by step guides for the three most common:

When It Cranks but Will Not Fire

If the engine turns over on the recoil or starter but never catches, work through the usual suspects. Stale fuel from last winter is the top cause, and it often clogs the carburetor with varnish. Our guide on cleaning a snow blower carburetor covers that repair. A fouled spark plug, an empty tank, a closed fuel valve or a primer bulb that has cracked and lost its seal are the other common culprits. If none of that brings it to life, a technician can diagnose it at your home.

Snow Blower Will Not Start? We Come to You.

A Wildwood technician diagnoses and repairs snow blowers right in your driveway, usually in about an hour. More than 10,000 repairs completed since 2019, with flat rates published before we arrive.

Frequently Asked Questions

How do you start a snow blower that has been sitting all summer?
Add fresh fuel if the old gas has been sitting untreated, then follow the cold start sequence: fuel valve on, full choke, prime two or three times, throttle to fast, ignition on, and start. Stale fuel is the most common reason it will not catch after a long summer.
Do you prime a snow blower every time you start it?
Only on a cold engine. Prime two or three times for the first start of the day, but skip the primer on a warm restart or you will flood the carburetor.
Why does my snow blower start then die?
The choke was opened too soon or the carburetor is partly clogged. Return the choke to half and let it warm, and if it keeps dying, the carburetor likely needs cleaning after sitting with old fuel.
Should I use electric start or the pull cord?
Use electric start for the first cold start of the day if your machine has it, since it spins a stiff cold engine faster than pulling by hand. The recoil is fine for warm restarts.
How many times should I press the primer bulb?
Two or three presses for a cold engine. More than that pushes too much raw fuel into the carburetor and floods it, which makes starting harder, not easier.
My electric start snow blower will not turn over. What is wrong?
Check that the extension cord is rated for outdoor 120 volt use and firmly seated, and that the ignition is on. If the button does nothing with good power, the starter or the button may have failed and needs service.
Is starting a single stage snow blower different from a two stage?
The sequence is identical. The difference is that two stage machines have larger, stiffer engines that benefit from electric start on cold mornings, while lighter single stage units pull over easily by hand.
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About the Author

Wildwood Repair Team

The Wildwood Small Engine Repair team has completed more than 10,000 mobile repairs on lawn mowers, snow blowers, generators and outdoor power equipment since 2019. Every guide is written from real bench experience and reviewed by a certified small engine technician before publishing.