Spark plugs keep burning out

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  #1  
Old 05-20-03, 10:26 AM
Zak
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Question Spark plugs keep burning out

I have a small 1.2hp outboard. It will run for about 2 hours, then the plug dies. If I put in a new plug the same thing happens. I have tried colder and hotter plugs but the same thing happens. Any suggestions??
 
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  #2  
Old 05-24-03, 08:22 AM
whome
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What do you mean "dies"? Check with ohmmeter or continuity light, gap, wire lead from electrical power source (magneto), etc. Really needs better diagnosis with some more details. Heat and compression also affect two stroke engines, fuel flow and mixture, carbonized cylinder/head... the list goes on. Pack a can of starting fluid spray and do a tune up.
 
  #3  
Old 05-26-03, 07:41 AM
Zak
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Thanks for replying.

After running weel for about about 2 hours the motor stops running. The plug looks good but it doesn't work. If I put in a new plug it runs well for about two hours and does the same thing!
 
  #4  
Old 05-26-03, 08:24 AM
whome
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Yeah, you said that before.
 
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