Riding Mower Briggs 17.5 HP ES 42 960120110 PO17542LT

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

Pull the throttle into the choke position.

Move the throttle lever so it engages the choke. Depending on the mower, this is done by positioning the lever between the fast and slow settings or pulling it upwards past fast to a point sometimes indicated by a circle with a diagonal line through it.

The choke is located before the throttle, and manages the total amount of air going into the engine. The choke is only used when starting a cold engine. When doing a cold start, the choke should be closed to limit the amount of air going in.
Manually – A manual choke is controlled by a lever on the side of the carb. A lever or knob inside the vehicle is then attached by a cable. This requires a person inside the car to slowly open the choke by hand. Automatically – An automatic choke uses a metal spring to open and close the choke plate.
An engine that requires the choking (partial or full) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine.
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The choke valve is typically found on the engine body or as a lever on the handle. There are a variety of gas lawn mowers on the market and the location of the choke valve will vary from machine to machine.
An engine that requires the choking (partial or full) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

I took off carbi & cant remember how the spring choke return and others go back on the carbi
ANSWER : It would be very difficult to explain how they are placed exactly but as you know they go from hole to hole and lever you could probably guess and get it right if you are mechanicly inclined at all…
…I will try to get a photo but I have my digital camera loaned out….But if you will look closley at the holes and the lever you will see a tiny worn place where the springs were attached…all you may get wrong is which spring goes where but after you install them crank it up and if it doesnt seem to run right switch the springs around until you get the correct idle….I have had to do the same thing and after 2 or 3 try’s I got it correct…..you cant hurt nothing….try that ….i will see what I can find ..I have a good photo somewhere in my photo gallery

What’s the trick to installing a flat coil spring into a chain saw recoiler without having it spring out
ANSWER : If you are having to recoil the spring after its come out. Roll it tightly with your hands then use vise grips on one side pinching it together then you can place it in the retainer/pulley. release

I have a 5.5 OHV Briggs and Stratton and it only runs if it is choked or half choked. When the choke is open (run position) the motor kills. There is only one adjustment screw, but making adjustments to that does not seem to make any difference. What’s wrong!
ANSWER : Check your fuel filter if you have one.If the mower/weedeater is over a year old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.Be sure to use compressed air to blow out all the fuel and air passages.Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.Keep in mind that the float for the carburetor must be level when you go to reassemble the carburetor or follow the instrucitons you get with the carburetor kit.When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.Be sure to mark the turns down on a piece of paper.That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
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Mantis tiller dosnt run right
ANSWER : The carburetor needs to be removed, soaked in a cleaner fluid for a couple of hours, reattached and then adjusted.

Will only start and run in choked position, when throttle applied chokes out. If started with out choke and throttle position in low speed will start and run for 10 sec then like it runs out of gas.
ANSWER : I have your solution guaranteed, I fixed mine yesturday remove H L screw plastic caps and on high 11 threads exposed and on the low side 8 threads exposed. removing the plastic caps allows u further adjusting these wear out or move soo just take them things off and you will be rolling

How do i rewind the recoil spring on my craftsman lawn mower?
ANSWER : Normally these small engines use a clock spring to retract the rope.
Remove the cover on the top and you should find the spring either broken or the tab where the spring end has broken off or jumped out of the mount.
You will need to pre-load the spring with enough tension to retract the rope.
Remove the pull handle from the rope, load the spring and then wrap the rope around the pully holding the pully and spring in the loaded position. place the end of the rope through the hole and tie up the handle. The rope should pull and retract without being installed on the engine.
Best explained here…

I have a 5.5 OHV Briggs & Stratton and it only runs good when it almost fully choked or half choked. There is one adjustment screw on the carb., but when I adjust it , it does not seem to run any better. When the choke is open it kills. What’s wrong?
ANSWER : The carburetor needs to be cleaned. There is something in one of the passages that is keeping it from running correctly.
To do this you will need a can of carburetor cleaner (spray) and a very thin wire to probe in all of the holes of the carburetor.
First, take the carburetor loose from where it mounts to the engine. Then take the wire and probe all of the holes in the carburetor, and also the holes in the fuel bowl nut (if any are present). Then shoot the carburetor cleaner through the holes to remove any loose particles of dirt or debris and to make sure the passages are clear. After you have done this, then you will need to blow through the holes to make absolutely sure that everything is removed that could be blocking either fuel or air from passing through the carburetor.
Re-install the carburetor back onto the engine, and check to see if the unit is running ok. If at this point the carburetor is still not running correctly, you may have to replace the carburetor. When you go to the parts counter you should have the MODEL, TYPE, and CODE off of the flywheel housing. These numbers are stamped into the metal.
I hope this helps you out.

Choke stuck After adding gas, tried to restart (Series 2000 CC Lawn tractor) but choke will not pull out, and tractor will not start. Lubrication did not help. Hope you can help!
ANSWER : You may have to replace the choke cable assembly. Sometimes they rust to outer sleeve