Craftsman

Craftsman, 21”, solid state ignition II, 6.5 Briggs & Stratton, Mod# 917.378440
Experienced gardeners share their insights in answering this question :
SEE IF YOUR ZONE CONTROL CABLE IS MOVING ITS THE ONE THAT KILLS THE ENGINE WHEN YOU WALK AWAY FROM THE MOWER ? IT SOMETIME GETS BENT OR BINDS AND IT WONT MOVE THE RELEASE MECHANISM UNDER THE FLYWHEEL EDGE

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 :

The problem may be in the recoil starter itself. A tangled coil of rope or a broken spring may be the problem. In many cases the recoil starter is easily replaced as a single assembly. DO NOT attempt do take the starter apart.
There may be old or bad fuel in the carburetor float bowl. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and make the engine hard to start. If the carburetor is clogged, try cleaning it with carburetor cleaner.
Some common issues that can lead to a cord being harder to pull are hydro locking, which usually occurs because of oil spilling into the exhaust area, and a misshapen crankshaft. The misshapen shaft can generally be detected due to the noise it makes. The off-ness of the shape causes the cord to be hard to pull.
The most likely reason a mower is hard to push is that the drive cable needs adjustment. Other possible causes include: Worn drive belt. Damaged pulley.
Since the effective weight of the lawn mower is lesser in the first case pulling the lawn mower is easier than pushing it.
Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
Some of the B&S auto choke carburetors tend to supply too much fuel to the cylinder when hot starting; this floods the spark plug, causing a no start. They have since modified the carburetor. So if you have an auto choke, Briggs, with the hot start problem, go ahead and swap out the carburetor.
Electric start (also known as key start or push button start) is a lawnmower feature found on petrol lawnmowers, which allows you to start the engine at the push of a button or the turn of a key instead of pulling a recoil starter rope.
Replacing a ripcord on your lawn mower is a quick and relatively straightforward job most homeowners can tackle. It takes less than an hour and you probably won`t spend more than $20 on parts if you have the basic tools you need to do the job.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Chain saw won’t start – pull starter pulley hard to pull?
ANSWER : If it worked fine the last time you used it, then pull the spark plug and try pulling the rope. See if it’s easier or if gas shoots out of the plug hole. I’ve seen this happen when the diaphram in the carb goes bad from sitting over winter. It loads up the cylider with fuel and makes it very difficult to pull the rope. If there is no fuel in the cyliner and it’s still hard to pull, make sure there is nothing binding the clutch/sprocket. I’ve had chucks of wook lodged in there that caused it to bind the crank output, which resulted in a hard pull on the rope as well.

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Hard to pull starter rope. It doesn’t pull smoothly. hard to pull.
ANSWER : Take the spark plug out–does it pull smoothly now? If not, the pull cord may be the wrong size or it is damaged and/or doesn’t rewind correctly. Does the machine have a compression release? If so, it may be plugged with carbon. With the spark plug out, pull the engine through several times briskly with the throttle open and the choke off to expel any excess fuel from the crankcase. Hope some of this helps!

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Toro 149cc Lawn Mower Won't Start – Toro Lawn Mower With Toro Power Tools
ANSWER : Bad carburetor your old fuel jammed up the jet so it won’t get fuel and if it does it will start and shut off So replace the carb or try to clean the jet and run non oxy fuel only

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Pull cord is difficult to pull after third pull becomes stuck but will turn if pull hard repeats every three to four pulls.
ANSWER : No response to clarification request.

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Mower won’t start
ANSWER : This may sound stupid but don’t mean it to…
Have you tried with the choke all the way open? Do you have an automatic cruise? Is the right (correct) pedal being pushed in? These will affect if it starts or not. Also if your drive belt or one of the other belts not being tight enough will affect if it starts or just turns over. Not too many things can stope it from starting with new/good battery AND if its getting gas. Try cleaning your gas line and obviously making sure there is no obstruction around or near your blade, if it does start with blade engaged that is :))
If it doesn’t start with blade engaged, well make sure it’s in neutral. Mine won’t start in reverse but will in forward or neutral.

Hope it helps.

Anthony

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Toro clear won't start – Toro Power Clear 621 R
ANSWER : Bad gas , plug ,air filter , no spark ck all need all 3 to start

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Engines pulls very hard and won’t start. Unit has
ANSWER : Sounds like the engine needs oil. You can also spray WD40 around the shaft. This will help loosen it up a bit, perhaps enough to allow it to start. The other possibility is that you have something wrapped around the shaft that is causing a restriction to the pulley.
Hope this helps.

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My stihl weed eater fs85 hard to start when hot
ANSWER : Try loosening the gas cap to relieve any pressure, then tightening it back up. Usually you will just need to barely unscrew it and then screw it back even before you pull the rope.

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