i’ve just ordered some new spark plugs for my Gt750j and noticed they are NGK B-6es whereas the haynes manual states they should be B-7es. not only that but the ones in the bike are B-8es
Which ones should i use ? - i do very little mileage
I would think B6es should be fine, depending on your riding style. If you ride WOT, I would go with a colder plug.
I have B6es in my 73 GT750, but I run the lower part of the throttle, with only occasional WOT bursts.
The GT750 varied from B6es to B8es depending on year.
