Does anybody know how to change a lawn mower spark plug? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-21-2007, 02:09 PM   #1
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Default Does anybody know how to change a lawn mower spark plug?

I can imagine it'* not that different from a car except I don't know how to chage a car spark plug either. Can I screw it out? Does the white part come out while the metal part stays in or do they both come out? Pics of the tools would be great too. This is the first time pulling the mower out since last fall, and the spark plug has never been change in the two years we have had it. It has good fuel, good oil but it will not start up, or it may start up for a second then putter out. thanks

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Old 04-21-2007, 02:11 PM   #2
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put a socket around the metal part...turn it out..put the new one in.

righty tighty lefty loosey


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Old 04-21-2007, 02:12 PM   #3
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Uses the larger 7/8 (?) spark plug socket on a ratchet.
Should come right out without much trouble.
And, yes, the white part comes with the metal part when removed.
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Old 04-21-2007, 02:36 PM   #4
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its a 13/16 take it to autozone it looks to be a common plug. the part number just escaped me. take the plug with you. get a new one.
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Old 04-21-2007, 03:23 PM   #5
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No spark huh? If the plug doesn't do it, it may be the magneto (pronounced mag-nee-toe), or a loss of compression somehow.
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Old 04-21-2007, 03:25 PM   #6
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Air filter and carb clean? There may be water or dirt plugging up the jet in the carb.
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Old 04-21-2007, 03:55 PM   #7
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That Plug isn't a Champion JLM19 is it? And I agree with Sandrock... Do you have any spark at all? Could be a bad Magneto..

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Old 04-21-2007, 05:31 PM   #8
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ya take the plug out and atach it to the plug wire... hold the other end of it and have someone pull the started string... you will know realy quick, fast, and in a hurry if its gettin spark or not....

















please dont listen to me.... but take the plug and position it on the block somewhere so you can see the electode and pull to check for spark..
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Old 04-22-2007, 03:08 AM   #9
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Oh it doesnt hurt THAT bad. Ive been electrocuted by a lawn mower more times than I care to mention. You get used to it really. Might even start to enjoy it a little.
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Old 04-22-2007, 10:01 AM   #10
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Quote:
Originally Posted by LittleHoov
Oh it doesnt hurt THAT bad. Ive been electrocuted by a lawn mower more times than I care to mention. You get used to it really. Might even start to enjoy it a little.
Hey Hoov..... Come here... Hold this wire... Hang on just a sec... * Runs to find keys *

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