RE: 1972 cotton cavalier 170 by Chris - written 12/12/2014 18:25:27






Martin Farrant wrote (10/12/2014 17:00:23):




Ant idea what is the correct spark plug for the 170 Minarelli engine,,  thanks for any help rec`....







Hi Martin.


According to my Champion plug book they list Minarelli engine Cottons as L81 (in NGK book this is B7HS)


As an alternative they also list Champion L6G (NGK B7HVX/B7HV) I'm not sure if this alternative is a hotter or colder plug as it's unclear in the book.


The plug gap is 0,5mm


Hope this is of use.  Chris


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