MHR replica plug.

[McScooterson]

I'm riding on a Yamaha Zuma with a Minarelli horizontal motor. I replaced it with a MHR replica 70cc, and am having a hard time finding the correct spark plug. I've narrowed it down to a "9" heat range, but I don't know whether I need a bpr9hs, br9hs, or a b9hs.
Thanks guys.

 

[xzburnoutzx]

Are you shure u need a short thread plug, atleast piaggios have a long thread plug on a MHR rep, and I used B9EG.

 

[McScooterson]

That sounds like a Liquid Cooled plug.(?)
I'm running the good ole' American standard A/C. BS

 

[Cruz_e_Silva]

BR9HS or B9HS if you don't have electronic anciliaries.