Home › Forum › Ask A Member › Viking 12 HP › Re: Viking 12 HP
September 12, 2015 at 3:59 pm
#23690
It’s too bad Johnson waited until the last two years of production (’49-’50) of their OK model before adapting cylinder heads to them. Of the OK models I own, 60, 75, 15 and 20, I prefer the design and appearance of the OK 20 model. The poor KA,KS and KD models never did get heads on them, just a spark plug location change.