Chinese made almost like a Torch plug ,possibly one in the pic below.
If I want a good plug I'd use NGK or Bosch
NGK BP6ES, NGBP6ES,
Advantages of Iridium Spark Plugs:
Longer lifespan: They typically last 25,000 to 100,000 miles in vehicles, much longer than traditional plugs. Better ignitability: They provide a more consistent and reliable spark, improving engine performance. Improved fuel efficiency: Their efficient combustion can lead to better fuel economy. Enhanced cold starts: They can improve starting performance in cold weather.
Are Iridium Plugs Needed on a Lawn Mower?
Not necessarily: Most lawn mowers are designed to work well with standard spark plugs, such as copper or nickel-plated plugs. When to consider iridium: If your mower is high-end, has electronic ignition, or if you want longer intervals between spark plug replacements, iridium plugs could be beneficial. Cost factor: Iridium plugs are more expensive than standard plugs, so for typical mower use, they might not be cost-effective unless you want the longest possible service life.
Bottom line: For most lawn mower applications, standard or platinum spark plugs are sufficient. Iridium plugs are a good upgrade for vehicles or equipment where longevity and performance are critical, but they are not strictly necessary for typical mower use.
The SPCR website was confusing because I couldn't determine the manufacturer. I contacted a spark plug supplier and like most, took the Torch F7TC cross reference to be a NGK BP7ES or the Iridium update of NGK BPR7EIX.
I purchased the NGK BPR7EIX but after more research, decided that the BP6ES or NGK BPR6EIX was a more suitable replacement as the 6.5HP is a Honda clone.
Anyway, what I have noticed is the engine starts as before but on being turned off even before getting warm, will start using 1/2 or no choke whereas the F7TC always required full choke.
On running with NGK BPR6EIX, I've also noted that the burnt petrol fumes aren't as strong.
Currently using 91 but may change to 95 to see if any difference.
