My kit came with a Runwell spark plug, no numbers, no marks on it. I accidentally put it in one day instead of the NGK BR6HS plugs that I bought. It ran better that day and the electrode on the plug never changed color. It looked almost brand new after 6 miles of riding. I had to change my large and small clutch gears. Maybe it has something to do with that but the motor doesn't seem to be running as well now after changing the gears and putting an NGK plug in. Tomorrow I'm bringing the Runwell plug out with me and will swap to it after awhile and see how she runs.
The other thing about the Runwell plugs is the threaded end is about 3mm or 4mm shorter from the crush plug to the electrode. If the Runwell does seem to run better tomorrow I'd like to either know where I can buy them or if there is another plug out there that matches it better than the NGK BR6HS.
The other thing about the Runwell plugs is the threaded end is about 3mm or 4mm shorter from the crush plug to the electrode. If the Runwell does seem to run better tomorrow I'd like to either know where I can buy them or if there is another plug out there that matches it better than the NGK BR6HS.