That's the one ! .

I've never tried one but when my son was in his teens & 20's , I had a few dozen Honda 90's so I was always up fixing one or four , I had some spare round bowl carbys and used to occasionally play " Musical Carbys " to see what made what engine run it's very best and the round bowl (PZ19's are clones) always seemed to make the most power and the smoothest running too .

I've seen plenty of old square bowl Chinese carbys on Flea-Bay too , your choices are almost unlimited , just watch closely at the location of the hose barbs for or aft , some of these Chinese copies don't have any fuel tap ~ .

Everyone I know personally who's tried a PZ19 , LOVED it .

I was offered to borrow one for tryout on my K2 but I'd rather buy it if he decides not to use it , knowhutimean ? .