If this is got the 27 hp kohler engine, I know exactly whats wrong with it , due to grass and engine oil building up in a short time under cylinder heads , it actually makes a tight ball of grass and stuff there !! this holds the engine heat and ruins the ign module that's just above it there , I put two on in one season ( tractor runs 6-10 hrs day 6 days a week ) I finally gave up I bought a Kawasaki 27 hp twin and installed it , now its run for two seasons and no problems
engaging the pto has nothing to do with it , it would cut off if you just drove it around for 15 minutes
SOURCE: My Toro lawn mower starts good, but it only runs
Sounds like you need a carb cleaning. Also install some Seafoam gas additive in your gas tank to clean out the gunk that builds up. Do not use ethanol gas.
SOURCE: My lawn mower starts, runs for about 5 seconds and
The engine is starving for fuel, that is why it will keep running while you force the fuel to the engine with the primer button. At this point, the carb will have to be removed,disassembled and cleaned. I'm sure you will find blockage and dirt in the carb and also in the small orifices for air and fuel flow.
SOURCE: When I start my toro
Hi ldroth22..
Remove your spark plug and check to be sure you are getting fire at the spark plug, if you are then:
Check your fuel filter if you have one, normally they are located in the fuel tank.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
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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SOURCE: The lawn mower won't stay running. It starts
Sounds like the automatic choke to me. When it acts up next time, remove the air filter, and observe the butterfly valve on the carb. Hold it open with a screwdriver, and see if it starts and runs. I have found that wireing the thing wide open solved my Toro problems. The mower is still under factory warrenty however, so you can always take it back! Hope this helps my friend!
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