Repairs lawn boy 10415

I checked the nozzle, dismantled carb again, and mower wont start. It seems like its not getting spark, how do i check spark?
 
Take the spark plug out and attach it to the plug wire. There should be a visible arc, and a "snap" sound at the electrode of the plug when you pull the starter rope.
 
I didn't get a spark or hear a pop. When testing for spark do I need to ground the plug? I was searching on the net to see if anybody else experienced this problem and i came across quite a few people with problems with the coil. The two things to be tried was using a hair dyer to heat up the coil and a similar idea is to "bake" your coil using an oven.? Is this a valid fix? Is this safe to do? Incidently i tried the hair dyer idea and it worked all be it was not the smoothest start. Does the fact that the hair dyer worked help me with the diagnosis and/or the permmanent repair needed?
 
jrogers297 said:
I didn't get a spark or hear a pop. When testing for spark do I need to ground the plug? I was searching on the net to see if anybody else experienced this problem and i came across quite a few people with problems with the coil. The two things to be tried was using a hair dyer to heat up the coil and a similar idea is to "bake" your coil using an oven.? Is this a valid fix? Is this safe to do? Incidently i tried the hair dyer idea and it worked all be it was not the smoothest start. Does the fact that the hair dyer worked help me with the diagnosis and/or the permmanent repair needed?
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I know that they bake a coil from time to time on old chainsaws. Remove the coil and heat it up with a in the oven at 150 degrees for an hour or two. Then seal the unit with a "Conformal coating" or a very thin epoxy and reinstall it and set the air gap this will bring them back to life 50% of the time. This would be my last ditch effort before tossing it.
 
You must ground the plug. Baking the coil and/or using a hairdryer are garage mechanic stuff and you will not get a good results. Plus you can do more damage if not careful. Ground the plug with the kill wire off and if no spark replace the coil. Any mechanic worth a penny would test it this way.
 
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