I am replacing my spark plugs for the new season.
My 1973 Tiger 750 calls for champion #N3 but I used a little hotter plug N4 for many years.
The auto parts stores usually don't have the champions in stock.
I used a NGK #BR7ES (5122) last year and they seemed to work o.k. but it is a resistor plug.
I have heard not to use Resistor Plugs.
Anyway, which plugs do you recommend?
Thanks,
Don