Quick answer
Which Toro you have changes the diagnosis. Older Recyclers with a red primer bulb often fail on fuel delivery: follow your manual's priming instructions, and if it fires briefly then dies, the carburetor may be gummed. Newer Recyclers and Super Recyclers, which Toro says need no priming or choking, rely on the carburetor to handle cold starts — when those crank without firing, common culprits are stale fuel, the cold-start system not working, or a fouled plug. Electric-start models that just click need the starter battery charged; the recoil cord, if your model has one, will still start a healthy engine.
Identify your starting system first
Toro walk-behinds have shipped with two very different setups, and troubleshooting advice for one wastes your time on the other.
- Primer-bulb models (older Recyclers, GTS engines): check your Toro manual for the exact procedure; typically you press the primer firmly — without over-priming — then pull the recoil or hit the electric start, and ease the choke off once running. For a restart while warm, the primer and choke usually aren't needed.
- No-primer, no-choke models (most current Recyclers and Super Recyclers): Toro says there is no need to prime or choke. There is nothing to press. If the engine is cold and cranks clean without firing, the auto-choke system itself is on the suspect list.
The fuel is guilty until proven fresh
If the gas has been in the tank more than about a month — and definitely if it wintered there — drain it and refill fresh before diagnosing anything else. Ethanol-blend fuel left sitting gums the carburetor's jets, and the no-primer auto-choke carbs are especially intolerant of varnish because their passages are small and there's no primer shot to force fuel through.
While you're in there, find the inline fuel filter, if your model has one, and hold it to the light. A darkened or clogged filter is an inexpensive fix.
Spark plug: swap, don't clean
Disconnect the spark plug wire, then pull the plug and inspect it. Sooty, oily, cracked, or simply old — replace it. If in doubt, replace it.
Auto-choke checks on no-primer models
When a cold auto-choke Recycler cranks but won't fire and the fuel is fresh:
- Remove the air filter cover and watch the choke plate while a helper pulls the cord on a cold engine. The plate should be closed (choking) when cold and open as the engine warms. A choke stuck open on a cold engine gives exactly the crank-no-fire symptom.
- Check the choke's return spring and linkage for damage or a popped-off end — damage or a popped-off end can leave the choke in the wrong position.
- If the choke moves freely and it still won't fire, the carburetor is gummed: clean it following your engine manual (spark plug wire disconnected, cleaner used per its label and away from any spark or flame), or have a shop do it. If cleaning doesn't hold, consider replacing the carburetor.
Starts then dies after a few seconds
That can point to a partially clogged main jet: the engine runs on the starting mixture, then starves. Cleaning the bowl and main jet is the usual next step.
Electric start clicks or does nothing
Many Toro walk-behinds with push-button start also have a recoil cord as a backup; check yours. If the cord starts the engine fine, the mower is healthy — charge the starter battery per the manual, and if it won't hold a charge after a full cycle, replace the battery. If neither the button nor the cord will turn the engine over at all, stop, disconnect the spark plug wire, and check for a locked blade (debris jammed under the deck) before assuming the worst.
Warranty worth knowing about
Toro's product pages for current 22-inch Recyclers describe a 3-year guaranteed-to-start warranty and a 2-year limited warranty; check your model's page and manual for the exact terms. If your mower is young and fights you every start, that's a dealer conversation before it's a parts order — and for battery-powered Toros that won't respond, the checks are entirely different: see our general mower no-start guide for the interlock rundown.