This is the plug from my 2007 Cub Cadet 524SWE. It may be the original as it is a Torch F6RTC. Torch is known to supply OEM engines. They have been in business in China since 1961. As you can see from the picture there isn't much deterioration of the electrode or ground strap leading me to believe even though the snowblower shows quite a bit of rust since it was stored outside and they use a lot of salt here I don't think the machine was used that much. Even the sparkplug is rusty.
looks good to me. Now you can wait another 10 yeas to change the new one out Most of these small engines don't get a lot of running time and a good spark plug will outlast the engine in many cases.
As you can see if you blow up the picture I did change to an NGK. After a lifetime of motorcycle mechanics and small engine work I've seen quite a few sparkplugs. This one impressed me regardless of how much running time it's actually had by how well it seemed to be burning for a Chinese plug.
Back in the day I used nothing but Champions, now I use NGK as my go to plug, Nippon Denso secondly.
I took it off so I can cut off the threads and see the full length of the insulator
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