You can use 10W-30 or just 30.
One of the most common reasons for a lawn mower not to start is that it is out of gas. Another reason is that the "key" has been broken. This key is designed to break if the mower hits a hard object.
Is this even a real question? Seriously, man. What does your mower run on? Hopes and dreams?
sheared flywheel key. youtube has vids... type in mower cord backfires & you'll see instructions on how to fix it.
You can try your local lawn mower sales and service store. Also, there are auto parts stores that carry lawn mower supplies. Noy sure if you can buy just a key or if you will need to buy a different switch altogether.
You can start it by using the pull cord, just be sure the key is in the ON position.
check the flywheel key. it sounds like it has sheared and will need to be replaced
There could be many reasons why your Sears riding lawn mower won' shut off. The key could be jammed for example.
A problem with a hard to start lawn mower can possibly be fixed by playing with the choke mechanism. Turn the choke all the way out and pump the gas three times, then close the choke nearly all the way and try the key. If the mower does not start, try again pumping only twice.
sears
Not on a push mower that has no electric start. On a riding mower, yes there is an ignition key.
Flywheel key (or shear pin) can shear off which will put the motor out of time and wont start . It could do damage to some other parts but that is the most common.
hurt no, if you pulled your cord and it jerked your arm and hurt you have a shear fly wheel key.