Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

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Starts and runs like **** then dies

When I first try to start it in choke position it starts then I put the throttle in mowing position it dies instantly. If I get it close to choke it runs but poorly
than after a couple minutes dies. It worked fine last year but the trouble started the first time I used it this year. Also loses alot of speed power when I engage blade.

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Filter maybe very dirty, you may need a new spark plug, you're carberator may have just a spec of debris in it , all things that happened to us also, this man is a wizard with small engines..www.belgiumsmallengine.com

Posted on Apr 28, 2010

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1 Answer

Just starting to use this spring, and having fuel starvation issues. I ran it this winter a couple times and it ran properly.


add a little carb cleaner to the gas and try letting it run on half choke for a while longer .

Mar 28, 2015 | Garden

1 Answer

Engine speed fluctuates


I am hoping that you use only premium fuel (no corn) to keep the carb clean. Also, it helps to pour a half can of anti-fogging agent into the fuel tank to help remove moisture and give an octane boost, plus it will clean carb ports. Any fuel that includes ethanol can kill the engine.

Apr 14, 2017 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

My lawnmower recently had a belt changeand a new battery and was working for about 15 minutes at the correct throttle location then died off. restarted it and now have to have the throttle all the way up...


You mentioned that you pushed the throttle all the way up. This position on Craftsman lawn tractors is usually the choke position. No power there. Just to aid starting only. As you move the throttle lever you will notice a notch. That is where the throttle should be after starting in order to mow.

If you still have difficulty, you can reply with a good description of what is going on and I will respond.

I hope this helps.

If this was really helpful, please rate.

Jul 13, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

3 Answers

I have A Scott Bonner lawn mower ,high performance,overhead cam, SX 4000, 4 stroke.I am finding it very difficult to start the cold mower every time I go to mow the lawn.It takes me about half an hour of...


Hi and welcome to FixYa, I am Kelly.

The symptoms you describe are typical of debris in the fuel bowl of the carb. I am going to assume for the moment that it is a similar to a Briggs and Stratton engine. Engine model type and serial information is what we work with to resolve engine problems regardless of the mower brand. I note you said it was a Scott Bonner SX4000 engine. I am also assuming that you have the 18 inch GreenKeeper like this one:
http://www.rovermowers.co.nz/www/rover/Home.nsf/13a851504c93cb754a257821000cfc6b/$FILE/28045.pdf

I do not have access to Scott Bonner Engine parts or technical data but if you clean out the fuel float bowl and it is still hard to start then the choke function of the engine is not working. Your engine has a "Bowl drain" screw on the bottom of the carb float bowl for removing carb debris or water in addition to a bowl nut.

Most likely due to the throttle cable needing and adjustment so that the choke is closed when choke is selected. Adjustment of the throttle cable is as simple as losening the clamp screw (Do NOT remove it) on the side of the carb throttle control and moving the throttle to STOP then re-tightening the clamp retaining screw. This should allow your choke to move full closed when selected. You may have to experiment with full throttle and STOP throttle control positions with the clamp screw loose but not removed to see which position will give you full throttle, choke and STOP. After each adjustment you MUST tighten the clamp screw to test the throttle cable travel on the the throttle plate. Beleive it or not... the person that assemble the mower made the intial throttle adjustment. It may have never been tested before you got the mower.

If you still have problems.... this is the brief way to start an engine that has choke problems. Remove the spark plug and squirt a splash of gas into the spark plug hole and then re-install the spark plug. Just don't over-do the splash of gas and if your messy wipe off the excess so you do not start a fire. (This method always works but you occasionally foul a spark plug with too much gas)

Thanks for choosing FixYa,
Kelly

Feb 01, 2011 | Garden

2 Answers

Cub cadet RZT 42 shuts down after about 30 min of mowing.


Check your magneto. I have had them cease to function whenever they would get hot. When cooled down, they would work.

Jul 23, 2010 | Cub Cadet Street Sign- tractor lawn riding...

1 Answer

Forgot how tostart it


Ensure you have the correct Fuel / Oil mix for your machine first.

Find the choke knob and turn to the closed position.
Find the Primer Bulb and pump it until it is full of fuel, once the bulb is full give it 3 pumps (If the primer bulb is already full of fuel just give it 3 pumps)
Make sure the ignition switch is in the "I" position and not the"O" position.
Pull start! (should take no more than 3-4 pulls before it fires)
Once it fires it may die instantly.... if so cancel the choke and pull start (should fire again on first pull)
If it does not die and it keeps running, cancel the choke while maintaining the engine's rev's.

Hope this helps.

Oct 12, 2009 | ECHO, Inc. Shred n Vac

1 Answer

Briggs & Stratton 135212/0129 - Homelite HL2500


the choke should be in the off position when running. YOU put the choke on to start it then when it starts u turn it off. If the choke is on the engine will die when reving

Aug 02, 2009 | Electrical Supplies

1 Answer

Was mowing starting cutting out and died wont start back it is flooding with gas.I cleaned the carb didint help


replace the spark plug first then go from there, try starting fluid if flooded but also as soon as it fires during starting pull back the throttle off choke sometimes you don't want to give the unit full throttle when starting 3/4 throttle is good enough

Aug 02, 2009 | Garden

1 Answer

I have a Troy-Bilt Mower - Model 834. It has a Honda GVC 160cc engine. It is supposed to start after two pulls when cold and did so since I bought it in 2006. But, just recently it takes 6-10 pulls to...


sounds like the throttle cable has slipped on the side of the engine if they dont pull the choke all the way on they wont start too well. one way to find out is take your air cleaner and outer cover off so you can see in the front of the carby the put your throttle on start/choke position the choke butterfly should be closed if not check your cable.

Jul 05, 2009 | Troy Bilt 5.5hp Self Propelled Mower

2 Answers

Sputters & quits at proper RPM for engaging trans or mowing deck


If the choke has an adjustment point, then adjust the choke to a good overall working powerband. If it still doesn't act correctly, look for vacuum leaks. If it is an option, you may want to install a manually operated choke lever.

Nov 23, 2008 | Garden

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