Thanks all for the replies. That's what I figured, the bike can run on unleaded without anything else.
The previous owner used to add Mystery Oil or other "lead substitute" additives.
The bike ran rough and would stall at idle when I bought it. I did a shotgun cleaning of the carbs and...
Just bought an '85 Vmax. Prior owner claims it was meant to be run on leaded gas and that I need to put additives in the unleaded gas. I find this hard to believe. I thought they started phasing out leaded gas in the 70's and I heard that Japanese bikes had hardened valve seats from the 60's...
