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A cut lawn edge beside a paved patio. Honda's HRN216 manual says to start the engine in a clear or mowed area, because the blade turns as soon as it starts.

Turf & trees

How to Start a Lawn Mower: Steps for 15 Engines From the Manuals

Primer presses, choke settings, pull technique and cranking limits for 15 push, battery and riding mowers, compiled from the makers' own manuals.

Illustration A cut lawn edge beside a paved patio. Honda's HRN216 manual says to start the engine in a clear or mowed area, because the blade turns as soon as it starts.

In this guide

How to start a lawn mower: check the oil, set your engine’s starting control (3 primer presses, choke on when cold, or nothing on ReadyStart and auto-choke engines), hold the blade-control bar to the handle, pull lightly to resistance, then pull briskly.

That is the push-mower routine. The numbers inside it change by engine, and we set 11 manuals and 3 maker pages side by side to get them: older Toro primer engines want 5 presses at 55°F or below, Honda’s Auto Choke wants 3 minutes of running after a cold start, and riding mowers cap the starter at 5 to 15 seconds and will not crank until the seat, brake and blade switch are set.

Start steps for 15 mowers and engines, from their manuals

Swipe the table sideways to see every column.

Mower or engineStarting systemSet before startingCold startWarm restartLimit or trapSource
Briggs & Stratton ReadyStart push-mower enginesRecoil, automaticOil level checkedNo choke, no priming: hold the bar and pullSame as coldThere is no primer or choke to findBriggs ReadyStart page
Briggs & Stratton Prime ‘N Pull enginesPrimer bulbOil level checkedPrime 3 times, then pull; skip the chokeNot stated on the page3 presses, not moreBriggs Prime ‘N Pull page
Toro 20071, 20072 Recycler (2006 manual)Primer bulbBlade control bar held3 primer pushes, each held 1 second; 5 below 55°F (13°C)Not statedNo start in 1 or 2 pulls: 1 or 2 more pushesToro Form 3357-437, p. 8
Toro 20036, 20037 Super Recycler (2002 manual)Primer bulbPlug wire on, bail held3 pushes 1 second apart; 5 at 55°F or belowNo primer after a brief shutdownWarm up at least 1 minute; after 3 failed tries, prime againToro Form 3328-678, pp. 9 to 10
Honda HRN216 (GCV170, Auto Choke)Recoil, automatic chokeFuel valve ON, blade control lever heldPull lightly to resistance, then brisklySame as coldRun at least 3 minutes after a cold start before stopping; longer below 70°F (21°C)Honda HRN216 manual, p. 8
Kohler XTX650, XTX675, XTX775, manual chokeRecoil, chokeFuel valve ON, engine switch ON if fittedThrottle FAST, choke ONThrottle RUN/FAST, no chokePull slowly just past compression, stop, return the handle, then pull firmlyKohler 14 590 26, p. 4
Kohler XTX Smart-Choke modelsRecoil or key, automaticFuel valve ON if fittedSmart-Choke sets the chokeSame as coldElectric start: stop after the key stepKohler 14 590 26, p. 4
Toro 21464 Personal Pace Electric Start (2025 manual)Push button, or recoilBar held, start button insertedPush the button until it startsSame as coldCharge 24 hours first, then monthly or every 25 starts; 40 A fuseToro Form 3444-703, pp. 15, 23
EGO LM2130, LM2130SP, LM2150SP 56VBatteryPack latched, cover closed, handle lockedPress the safety button, pull the bail to the handle, let go of the buttonSame as coldRated 32 to 104°F; do not switch off and on rapidlyEGO manual, pp. 13, 34 to 35
John Deere S100 to S180 tractors (2025 manual)Key, choke in throttle leverSeated, attachment off, brake pedal fully downThrottle into the choke area and hold; key to STARTFull throttle; key to START5 seconds of cranking at most; never stop the engine with the chokeJohn Deere OMUC44974, pp. 30-7, 30-8
Kawasaki FR651V, FR691V, FR730VKey, chokeLoads off, fuel valve open, half throttleFull chokeHalf choke or open5 seconds of cranking, then wait 15; warm up 3 to 5 minutesKawasaki FR manual, pp. 17 to 19
Kohler 7000 Series with Smart-ChokeKey, automaticEquipment in neutralStarter switch; release when it firesSame as cold10 seconds of cranking, then a 60-second cool-downKohler 32 690 03, p. 41
Husqvarna TS 242 tractor (2019 manual)Key, choke knobSeated, brake and parking brake set, attachment clutch off, throttle fastChoke knob outChoke may not be neededStarter 15 seconds per minute at most; at 50°F and below, ease the choke in by stepsHusqvarna TS 242 manual, p. 12
Cub Cadet riding mowersKey, chokeSeated back in the seat, parking brake on, PTO offChoke on, key to start, let it returnNot statedSitting too far forward can stop it startingCub Cadet riding mower page
Toro TimeCutter 75749 zero-turnKey, chokeMotion-control levers locked in PARK, blade switch OFFChokeA warm or hot engine may not need choke5 seconds of cranking, then wait 10Toro TimeCutter 75749 manual
Compiled from 11 operator’s and owner’s manuals and 3 maker web pages, checked Nov. 9, 2026. Download the data: how-to-start-a-lawn-mower-2026.csv.

Read across the cold start column and three routines appear: prime and pull, choke and pull, or just pull. Doing one engine’s routine on another makes a good engine look dead: priming a warm Toro 20036 is the step its manual rules out, and a Honda HRN216 owner hunting for a choke will not find one, because its Auto Choke sets itself.

Which starting system is on your mower?

Look at the engine before you follow any steps. A rubber bulb about the size of a thumb is a primer; a lever or knob marked with a choke symbol is a manual choke; a key or a removable button is electric start. A walk-behind with none of the three uses an automatic system such as Briggs & Stratton ReadyStart, Honda Auto Choke or Kohler Smart-Choke.

Which starting routine does your mower need?
  1. 1Does it run on a battery pack with no gas cap?

    YesBattery mower: latch the pack, close the cover, press the safety button, pull the bail to the handle, release the button (EGO LM2130, p. 35).

    NoGo to the next question

  2. 2Do you sit on it?

    YesRiding mower: seated, blades off, brake down (zero-turn levers in PARK), throttle set, choke if cold, key to START for 5 seconds at most (John Deere; Kawasaki; Toro TimeCutter).

    NoGo to the next question

  3. 3Is there a rubber primer bulb on the engine?

    YesPress it 3 times (5 at 55 F or below on older Toro engines), skip it on a warm engine, hold the bar, pull (Briggs; Toro).

    NoGo to the next question

  4. 4Is there a choke lever or knob?

    YesCold: throttle FAST and choke ON, then ease it off as the engine warms. Warm: choke off (Kohler XTX, p. 4).

    NoGo to the next question

  5. 5Is there a key or a start button on the handle?

    YesHold the bar and push the button until it starts; the recoil works if the battery is flat (Toro 21464, p. 15).

    NoAutomatic system (ReadyStart, Honda Auto Choke, Kohler Smart-Choke): fuel valve ON if fitted, hold the bar, pull lightly to resistance, then briskly.

Source: Briggs & Stratton start-system pages; Honda HRN216; Toro Forms 3357-437, 3444-703 and TimeCutter 75749; Kohler 14 590 26; Kawasaki FR; John Deere OMUC44974; EGO LM2130

How to start a gas push mower, step by step

  1. Check the oil on the dipstick. Briggs & Stratton prints “always check your oil level before starting” on both of its start-system pages, and Honda puts it under Before Each Operation (HRN216 manual, p. 6). Grade and capacity are in our lawn mower oil guide.
  2. Use fuel no more than 30 days old. Toro calls old fuel “the leading cause of hard starting” (Form 3444-703, pp. 11, 25); ethanol limits by maker are in our guide to what gas a lawn mower takes.
  3. Roll the mower onto a mowed patch or a clear hard surface. On a Honda HRN216 the blade turns as soon as the engine starts (p. 8).
  4. Turn the fuel valve to ON if your engine has one (Honda HRN216; Kohler XTX).
  5. Set the starting control: 3 primer presses, or 5 at 55°F or below on older Toro engines; or throttle FAST and choke ON for a cold manual-choke Kohler; or nothing at all on ReadyStart, Auto Choke and Smart-Choke engines.
  6. Hold the blade-control bar against the handle and keep holding it. On the Honda HRN216 and Toro 20036, releasing it stops the engine.
  7. Pull the starter grip lightly until you feel resistance, then pull briskly, and let the rope return gently (Honda HRN216, p. 8; Toro Form 3328-678, p. 10).
  8. Once it runs, move a manual choke back toward OFF gradually as the engine warms (Kohler 14 590 26, p. 4). On a cold Honda Auto Choke engine, let it run 3 minutes before you shut it off.
  9. If it has not started after 3 tries, Toro’s 20036 manual says to prime and pull again. After that, work through our lawn mower not starting checklist rather than pulling until the rope frays.
Honda HRN216 manual, Starting the Engine: fuel valve ON, hold the blade control lever, pull lightly to resistance then briskly
Screenshot Honda's HRN216 starting steps: fuel valve ON, hold the blade control lever, pull lightly until you feel resistance, then pull briskly. Source: American Honda, HRN216VKA owner's manual, Starting the Engine, p. 8, accessed November 2026.

Kohler words the pull differently. Its XTX manual says to pull slowly until just past compression, stop, let the handle return, then pull firmly straight out to spare the rope guide (Kohler 14 590 26, p. 4). Both begin the hard pull at the compression point, not from a slack rope. One widely shared guide tells owners to pull the cord rapidly for 10 to 15 seconds; none of the 11 manuals describes that.

Primer bulb or choke: how many presses, and when to skip them

Briggs & Stratton’s Prime ‘N Pull engines take 3 presses and no choke (Briggs). Toro’s 2006 manual for the 20071 and 20072 Recycler says to hold each press for a second and to press 5 times when the air is below 55°F (13°C), then add 1 or 2 presses if 1 or 2 pulls fail (Form 3357-437, p. 8).

Toro Recycler 20071 manual note: below 55 degrees F push the primer 5 times; 1 or 2 more pushes if 1 or 2 pulls fail
Screenshot Toro's 20071 and 20072 manual: push the primer 5 times when the air is below 55°F (13°C), and 1 or 2 more times if 1 or 2 pulls fail. Source: The Toro Company, Form 3357-437 Rev A, Starting the Engine, p. 8, accessed November 2026.

Do not prime a warm engine. Toro’s 20036 manual rules out the primer “after a brief shutdown” but adds that cool weather may call for it again (Form 3328-678, p. 9). So the restart after you empty the grass bag on a primer mower is a pull with no presses, unless the morning is cold.

A manual choke follows the same cold and warm split. Kohler: cold engine, throttle FAST and choke ON; warm engine, throttle RUN/FAST with the choke off (p. 4). Kawasaki’s FR riding engines use full choke cold and half or open choke when warm or in hot weather, and warn that cranking a very warm engine with the choke closed floods it (Kawasaki FR manual, p. 17). If that happens, Kawasaki says to open the choke fully and start it.

Why the engine dies when you let go of the bar

Federal law. Under 16 CFR 1205.5(a)(1), a walk-behind rotary mower must keep the blade still until you work the control, need continuous contact to keep it turning, and bring it to a complete stop within 3.0 seconds of release. The rule lets the bar stop the engine too when the starting controls sit within 24 inches of the top of the handle, which is how most pull-cord mowers comply.

So the bar is part of the starting procedure, not an option. With the bar released, those mowers are built not to run. CPSC’s plain-language summary adds that reel mowers are exempt from the blade-stop performance test; EGO’s battery mower meets it with an electric brake that stops the blade within 3 seconds of letting go of the bail (EGO manual, p. 35).

Electric-start and battery mowers

An electric-start walk-behind still needs the bar held. Toro’s 21464 manual: hold the blade-control bar, insert the start button, push it until the engine starts; the recoil handle works as a backup (Form 3444-703, p. 15). Charge the battery 24 hours before first use, then monthly or every 25 starts, and replace the 40 A plug-in fuse if the starter will not turn the engine (p. 23).

Battery mowers have no choke, primer or warm-up. On the EGO LM2130 series: latch the pack and close the cover, press the safety button, pull the bail to the handle, then let go of the button (p. 35). It will not start unless the handle is locked in one of its 3 operating positions, and EGO rates it for 32 to 104°F (pp. 13, 34). Toro’s 60V Recyclers also pair a button with the bail, in an order that differs by model, as our Toro starting guide by model number shows for the 60V Recyclers.

How to start a riding mower or zero-turn

Riding mowers use interlock switches, so the order matters more than strength. The John Deere S100 to S180 manual, Husqvarna’s TS 242, Kawasaki and Toro’s TimeCutter share this sequence, with the differences noted:

  1. Sit on the seat, all the way back. Cub Cadet says a rider sitting too far forward may not get it to start (Cub Cadet).
  2. Turn the blades off: PTO lever or switch, or attachment clutch, to OFF.
  3. Press the brake pedal fully (John Deere OMUC44974, p. 30-7) and set the parking brake (Husqvarna TS 242, p. 12). On a zero-turn, lock both motion-control levers out in PARK (Toro TimeCutter 75749).
  4. Set the throttle: full on the John Deere, fast on the Husqvarna, half on a Kawasaki FR engine.
  5. If the engine is cold, choke it: push the John Deere throttle lever into its choke area and hold it; pull the Husqvarna choke knob out.
  6. Turn the key to START and release it as soon as the engine fires. Crank for 5 seconds at most on the John Deere, Kawasaki and Toro TimeCutter.
  7. Ease the choke off as it smooths out, then let it warm: Kawasaki says 3 to 5 minutes at a mid throttle setting (p. 19).
John Deere S100 to S180 manual starting steps 4 to 6: full throttle, key to START no more than 5 seconds, choke area when cold
Screenshot John Deere's S-series tractors: full throttle, key to START for no more than 5 seconds, and on a cold engine hold the throttle lever in the choke area first. Source: John Deere, OMUC44974 Issue K5, Starting the Engine, p. 30-7, accessed November 2026.

If the engine does not catch, rest the starter before the next try. The makers’ limits differ by a factor of 6:

Riding mower starter limits: crank time vs rest before the next try
  1. Toro TimeCutter 757495
  2. Kawasaki FR series5
  3. Kohler 7000 Smart-Choke10
  4. Husqvarna TS 24215

Source: Toro TimeCutter 75749 manual; Kawasaki FR manual p. 17; Kohler 32 690 03 p. 41; Husqvarna TS 242 manual p. 12; accessed November 2026 Husqvarna gives 15 seconds of cranking per minute; the 45-second rest is our arithmetic. John Deere's S100 to S180 manual sets 5 seconds of cranking but no rest time, so it is not charted.

Show the numbers
Crank at mostWait before retrying
Toro TimeCutter 75749510
Kawasaki FR series515
Kohler 7000 Smart-Choke1060
Husqvarna TS 2421545
Engine or mowerCrank at mostThen waitSource
John Deere S100 to S1805 secondsNot statedOMUC44974, p. 30-7
Kawasaki FR651V to FR730V5 seconds15 secondsKawasaki FR manual, p. 17
Toro TimeCutter 757495 seconds10 secondsTimeCutter manual, Starting the Engine
Kohler 7000 Smart-Choke10 seconds60 secondsKohler 32 690 03, p. 41
Husqvarna TS 24215 seconds per minute45 seconds (our arithmetic: 60 minus 15)TS 242 manual, p. 12
Starter limits from each maker’s manual, checked Nov. 9, 2026. Toro says more than 5 seconds can damage the starter motor; Kohler says it can burn the starter out.

If the key does nothing at all, suspect an interlock before the battery. Toro’s TimeCutter safety test says the engine should not crank with the blade switch ON or with either lever out of PARK, and should shut off if you rise from the seat with the blades engaged. Kohler adds that after a false start you must let the engine stop completely before cranking again, or the starter pinion can clash with the flywheel (32 690 03, p. 41).

First start of the season

Spring starts fail on what happened in fall. Toro calls old fuel the leading cause of hard starting and says not to keep it unstabilized past 30 days (Form 3444-703, p. 25), and Honda advises running the carburetor dry if the mower will sit 3 to 4 weeks (HRN216, p. 9). If you did not, drain and refill with fresh gas before you pull at all, and change the oil if it is due; our oil change guide lists the tip side for each engine.

Then start it by the cold-engine column of the table, even on a warm April day. Kohler’s cold-weather hints are oil suited to the temperature, all external loads disengaged and fresh winter-grade fuel (14 590 26, p. 4). On electric-start mowers, check the battery first: Toro’s 21464 wants a 24-hour first charge, and Cub Cadet’s setup steps for its riders connect the red positive cable first, then the black negative.

If it still won’t start

Stop after 3 correct attempts on a push mower, or 3 cranking cycles on a rider. If a choked engine has flooded, Kawasaki says to wait 15 seconds, open the choke fully and start it again (FR manual, p. 17). Never shut a John Deere off with the choke; its manual warns of backfire, fire or engine damage (p. 30-8). The full diagnostic order is in our lawn mower not starting checklist; Toro owners can use the Toro no-start guide by model number, and shop prices are in our lawn mower repair cost survey.

How we compiled this

In November 2026 we read 11 owner’s, operator’s and service manuals (Honda, Toro, Kohler, Kawasaki, John Deere, Husqvarna and EGO, 2002 to 2025 editions), 3 maker web pages (Briggs & Stratton and Cub Cadet), 16 CFR 1205.5 and CPSC’s summary of it. Every step, count and time limit cites its document and page. We did not start or test any mower; videos and forum threads only showed which questions owners ask.

Frequently asked questions

Should the choke be on or off to start a lawn mower?

On for a cold engine with a manual choke, off for a warm one. Kohler’s XTX manual says throttle FAST and choke ON cold, RUN/FAST with no choke warm; Kawasaki allows half choke when warm. ReadyStart, Honda Auto Choke and Smart-Choke engines have no choke to set.

How do you start a lawn mower with a pull cord?

Hold the blade-control bar to the handle, pull the grip lightly until you feel resistance, then pull briskly and let the rope return slowly, per Honda’s HRN216 and Toro’s manuals. Prime or choke first only if your engine has a bulb or lever.

Why is it so hard to start my lawn mower?

Usually a step is missing or the fuel is old. Check that the bar is held, the fuel valve is ON and the primer or choke matches your engine. Toro calls fuel over 30 days old the leading cause of hard starting; our not-starting checklist covers the rest.

How do you start a lawn mower without a choke?

Most current push mowers have none. Briggs & Stratton ReadyStart needs no choke and no priming, Honda’s Auto Choke sets itself, and Prime ‘N Pull engines replace the choke with 3 primer presses. Hold the bar and pull.

How do I start a riding mower that has been sitting?

Replace fuel older than 30 days, check the oil and charge the battery, then sit down, set the brake, turn the blades off, set the throttle and choke, and crank for 5 seconds at most. Kawasaki says wait 15 seconds between tries; Kohler 7000 says 60.

Sources

  1. Briggs & Stratton, Starting your mower with the ReadyStart System, updated January 13, 2026. Accessed November 2026.
  2. Briggs & Stratton, Starting your mower with a Prime ‘N Pull System, updated January 13, 2026. Accessed November 2026.
  3. American Honda Motor Co., HRN216VKA lawn mower owner’s manual, 2022 edition. Accessed November 2026.
  4. The Toro Company, Recycler models 20071 and 20072 operator’s manual, Form 3357-437 Rev A, 2006. Accessed November 2026.
  5. The Toro Company, Super Recycler models 20036 and 20037 operator’s manual, Form 3328-678, 2002. Accessed November 2026.
  6. The Toro Company, 22in Recycler 21462 and 21464 operator’s manual, Form 3444-703 Rev C, 2025. Accessed November 2026.
  7. The Toro Company, TimeCutter 42in riding mower 75749 operator’s manual, current web edition. Accessed November 2026.
  8. Kohler Engines, XTX650, XTX675, XTX775 owner’s manual, 14 590 26, current PDF. Accessed November 2026.
  9. Kohler Engines, 7000 Series service manual, 32 690 03 Rev. M, 2022. Accessed November 2026.
  10. Kawasaki Engines, FR651V, FR691V, FR730V owner’s manual, 2022. Accessed November 2026.
  11. John Deere, S100 to S180 tractors operator’s manual, OMUC44974 Issue K5 (retailer-hosted copy), 2025. Accessed November 2026.
  12. Husqvarna, TS 242 operator’s manual, 114 14 43-28, 2019. Accessed November 2026.
  13. Cub Cadet, Get to know your Cub Cadet riding lawn mower, current page. Accessed November 2026.
  14. EGO Power+, LM2130, LM2130SP, LM2150SP 56V cordless mower operator’s manual, 2021. Accessed November 2026.
  15. U.S. Government Publishing Office, eCFR, 16 CFR Part 1205 Subpart A, including 1205.5 Walk-behind rotary power mower controls, current as of November 2026. Accessed November 2026.
  16. U.S. Consumer Product Safety Commission, Requirements for walk-behind power lawn mowers, 16 C.F.R. Part 1205, undated summary. Accessed November 2026.