Yes they are, Iv'e had 'em in my 1150, single spark since june last year, and they do seem to smooth it out, I also put one in my little MZ single and that also is better, so yes thye are good.
Yes they are, Iv'e had 'em in my 1150, single spark since june last year, and they do seem to smooth it out, I also put one in my little MZ single and that also is better, so yes thye are good.
Cheers for that I might give them a try, if I can get hold of them easily that is I would guess that any motor factors that deals with NGK can get them in