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Posted by ritpg on June 2, 2008, 11:28 am
> I have a 6 year old White LC210 push mower which has been terrific
> until now. =A0It has a 6.0 HP B&S Quantum engine that includes a shut
> off key. =A0Symptoms: =A0mower runs for a few seconds until the prime is
> burned off and then stops. =A0Background: =A0I've been using the mower
> with no problem this year (so that probably rules out bad gas which I
> replaced with a fresh fill anyway). =A0I may have changed the position
> of the shut off key (but then restored it). =A0I have checked the plug
> and air filter and don't see any problem. =A0I have replaced the gasket
> between the carburator and air cleaner to no avail. =A0I removed the
> carburator and did not see anything unusual. =A0When I changed the oil
> at the beginning of the season by flipping the mower upside down
> (can't get to the oil plug without out removing the engine from the
> deck - my only serious problem with the design so far), some oil
> leaked into the air cleaner. =A0I replaced the filter and have since
> used the mower with no problem although there was some smoke until the
> oil residue had been burned off.
>
> The only thing that occurs to me as I sit here is that when I moved
> the shut off key, I did not get it back to the correct position. =A0I'm
> not sure what this key does. =A0If it stops the flow of gas, than I may
> need to play with the key. =A0If it shuts off the spark, then I doubt
> that it is the problem since I can get it to run, just not beyond
> burning the prime. =A0Looks like I need to take a closer look at the
> shut off key mechanism. =A0Any thoughts?
>
> Thanks.
Well, despite all the much appreciated help I received here, I gave up
and delivered my White lawn mower to the place where I bought it. And
$57 and one week later, I have my beloved mower back and running like
new. I'll never know what they did to it to get it to run. I asked
and was told that the carb. was very dirty. I don't doubt that there
was dirt somewhere but "very dirty"? I don't think so. Not after I
was done cleaning it? I obviously missed something but that carb. was
not "very dirity" when I turned the mower in for repair. I was
talking to a friend about my experience and he said that the vaste
majority of the time, it's the screw that secures the bowel to the
carb. that's at fault. I did not pay much attention to this screw
when I cleaned the carb. I has holes in it thru which the gas flows.
I'll certainly look more closely at this next time.
BTW, I was not aware of how much the performance of the mower had
degraded. At high speed it feels like I have to run after the mower
to keep up. And it's getting thru grass that used to cause it to bog
down. Life is good.
Thanks again for all the help.
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