Review on NGK JR9C Standard Spark Plug by Nick Brunner

Ok these parts are for motorcycles so some features would be useful like not including the fitting nut at the top of the fork. It's just a threaded bolt no matter what the overall picture shows. No local parts stores sell the end nut. Heck, they didn't even have plugs that were in the box. I would like to buy new spark plugs to get my bike back on the road. Apparently it's Yestertech now and most recent forks have them attached without the ability to remove them. I ended up having to visit 3 repair shops before I found the place where the old candles were that they were removed from. just a big hassle when you're not expecting it. So don't buy them if your connector wires require a terminal nut. Hex head 18 mm. This is too big for many heads that fit into the cylinder head on motorcycles. I happened to find a very thin-walled socket, 18 millimeters deep, that suited me. But it's different than the 16mm that came with my tool box on my bike, so be careful. It has two electrodes that differ from the main Revain images. probably a good thing, but still know what you're buying. Well, and I think they work, the bike seems to work fine.