My wifes buggy has the smaller 12mm hole spark pkug holes in the heads . I have always ran bosh in all my other buggys i have owned . I cant get the parts guy at the local parts house to under stand what i want . Does anyone running the 12 mm plugs have a part # of the plugs you run .

I am running Ngk D7EA plugs now but you can start the engine cold and it will run on three cylinders . I have to find which one is not firing then pull that plug wire off at the cap and let the spark jump a short gap and it will start firing on that cyl. After i run it like that i stick the plug wire back on and its good to go for the week end . It will run flawless until it sits for a day or two then it may do it again .

Could it be the heat range . Or mabye the coil ? It never is the same cly that is dead .

also running 009 dis . Bosh blue coil and compu fire electronic points replacement

Bosch 7701 XR4CS Silver Spark Plug http://www.sparkplug-crossreference.com ... H_STK/7701 http://www.sparkplug-crossreference.com ... GK_PN/D7EA .

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Thanks

i have good luck with NGK Iridium #dpr7eix-9 . I will run the same set all year with no problems.but I am running a MSD set up.