01-17-2008, 12:48 PM
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 | Master Bike Builder & Forum Sponsor | | Join Date: Dec 2007 Location: Duvall, WA PNW
Posts: 1,534
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 Re: NGK BR4HS - Iridium or other upgrade?
I don't think you will go wrong with NGK. My instructions call for BR4HS. You could use this if you have a 70-80CC. Or non-resistor B4HS. OR you could step down one heat range to the B(R)5HS.
BR6HIX - I may try it....... |