Question about Craftsman 42 in. Deck 19.5hp Lawn Tractor

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Craftsman 21hp, starter engages but will not turn over engine, take out the spark plug and it will roll oer?

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Adjust valves. compression release for start is set in valve adjustment.

Posted on Oct 20, 2014


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Posted on Jan 02, 2017

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SOURCE: craftsman lawn tractor wont start

your fuel filter could be plugged

Posted on Jan 19, 2009

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SOURCE: Intek engine runs poorly under load and when warm

if you have a ohv ajust valves and you might have to rebuild carb.

Posted on Jul 18, 2009

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SOURCE: I have a briggs and strattan 18 horsepower engine

Set intake valves @ .004 and exhuats @ .006 with piston a 1/4 inch downstroke from TDC.It sounds like the ACR {automatic compression release}is not working do to valves having to much lash.

Posted on Nov 18, 2009

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SOURCE: I have a 15.5 hp ohv briggs n stratton on a

There is a switch underneath the seat that will shut the engine down if the mower is engaged and you are not on the seat...that switch is bad and it thinks you are not on the seat so it shuts you down...


Posted on Aug 10, 2010

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SOURCE: I have a craftsman lt1000 model 917272761 motor

sounds like a push rod came off in the engine

Posted on Sep 08, 2010

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2 Answers

Riding mower won't start, new starter, spark plugs an fuel filter. What should I check next?

If it's carbureted, make sure the bowl float isn't stuck.
Another possible idea, and not saying that this is it, but many small engines have a small sensor that will hour allow an engine to run without having an adequate oil level.
My 21hp briggs engine won't start if I'm only 3oz low..

Apr 27, 2017 | Craftsman Garden

1 Answer

I have new battery and new starter,engine turns over but stops at a certain point and will not start, oil level and fuel level is good

remove the spark plug and crank it .if it spins real good then put plug back and try it . . last year mine bent an intake push rod .

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starter engages? does it try to turn over? what make and engine model?

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What to look for after losing spark to plugs?

Check the gap on the magneto maybe it got bumped out of adjustment, or voltage regulator

Jun 15, 2014 | Craftsman 46 In. 21hp Briggs & Stratton...

1 Answer

Mower won't start

Battery charged?,sitting on the seat?, starter or solinoid working? Take out the spark plugs and try turning the engine underneath by using the pulley. Is the oil fresh?

Apr 20, 2014 | Craftsman Garden

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I have a sears craftsman tractor,18 hp electric start. No. 917.254860. engine no. 422707,type no. 1522.01. briggs and stratton. engine won,t turn over. Replaced plugs,coil,carborator rebuilt to specs. New...

From your description it seems that the starter is not engaging to turn over the engine. First ensure all the connections of the thicker cables to the battery, starter and tractor frame are clean and tight. If starter motor is turning but still not engaging it will mean that the pinion on the starter motor is binding on the shaft. You can buy a new starter pinion gear from your local B & S agent.
To replace pinion, remove starter motor from engine, remove old pinion and put on new one and reattach starter to engine. If fuel & spark are right you should be up amd running.

Sep 16, 2010 | Briggs & Stratton Briggs Stratton Intek V...

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Cant get the mower to turn over. Have good battery voltage and the relay clicks. there is 12+ volts to the starter when I engage the key. How do I check the starter/solenoid further? or is it clearly a bad...

get a wire that goes to the positive terminal on the battery and touch it to the bolt on the starter and see if it works then. if not, the starter could be bad, screw the plastic gear back up til it engages in the flywheel on the engine and hand turn the lawnmower with the starter gear engages to loosen it up then try

Aug 02, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

2 Answers

I have a briggs and strattan 18 horsepower engine on my craftsman mower and it wont start, i replaced the starter and it still wont start! It wont even turn over, in fact it binds the starter, but if I...

Have the battery tested at an auto parts store to ensure there is enough power in it. Sounds like it's strong enough to turn the motor with no compression (spark plug removed) but too weak to turn the motor with compression. Also check for loose or corroded wires.

Sep 20, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

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