On Mar 21, 11:58*am, "theChas." wrote:
Be careful. * These mowers almost alwaysy have the ignition permanently ON.
You press the button to 'kill' the motor, but don't have to press or switch
anything to start it.
Turning a blade by hand can cause the engine to start, and take fingers or a
hand off. *When doing any work under the machine, always make sure the
sparkplug wire is off the plug and not able to come back into contact with
it. Safer yet, remove the plug.

You know, I'm all for safety. And obviously the safest thing for most
people to do is to remove the sparkplug wire. But I'd like to hear
if anyone has ever actually seen a mower start from anyone just
removing a blade to sharpen it. The new mowers have brakes which
prevent them from turning without the lever being depressed. With
that feature, I no longer bother disconnecting the plug to remove the
blade or clean underneath. All the mowers I've ever seen need one
hell of a pull spin to fire at all. And at most, I'm taking the blade
off, not spinning the crankshaft around. I can't fathom that barely
moving a blade is going to start the thing going. To get an ignition
spark, the magneto needs some minimum amount of speed.

This sounds like a good test for the mythbusters.






wrote in message

...

Hi,
I have a sears self propelled walkbehind mower. I've hit
bricks, sticks, etc, and it works fine. However I hit
a large stick the other day, and when I push down
on the handles to raise the front wheels, [to turn a corner]
it makes a loud racquet, like the blade is hitting something
slightly. Is that just a bent blade or could it be the shaft?
Is there a way to tell? *Plus do I have to get the sears
blade or will any 22" blade work?

thx

itchy

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