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Bill-W are the B6S eqv to J6C or J8C….. isn’t J8C a hotter plug which is best for the 3-10hp range jw cd ad qd ?
anyway found a set of 4 on Amazon.ca for 18$CDN …..based on Bob-W experience
The B6S is about the same heat range as the J6C plugs while the B8S plug is a bit colder and is used in J4C applications. I don’t think NGK ever manufactured a hotter B4S plug so the B6S has to be used.
My local auto supply opens a 9:00 AM today so I’m going to see how many of these plugs they have left on their shelves. They usually have them in the ten packs so maybe I should load up if they still have them.
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According to the Champion Cross reference that I have, the B6S is the equivalent of the J8C and the B7S is the equivalent of the J6C
. The numbers for heat range for NGK and Champion go in opposite directions.Hmmm…….this site shows the B6S as a replacement for the Champion J6, J7, and J8 series of plugs. Best thing to do is install a new set, run the motor for a while and then read them. May have to make an adjustment depending on how the motor is being used. Usually a hotter plug for extended trolling or a colder plug for hard service such as water skiing.
https://www.sparkplug-crossreference.com/convert/NGK_PN/b6s
My guardian angel must be watching me today as my local auto supply (Lordco) can get all the B6S, B8S, and BM6A bantam plugs I want out of their Vancouver warehouse. I ordered several boxes of ten packs so that should keep me going for a while. ☺
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