try to find a good oil for a Honda z50 i use a semi-sinthectic oil and filler up till the oil is imbetween low and hi markers on the dipstick remember to dump old oil before replacing.
SAE 10w30 any major brand. I highly recommend you use Synthetic oil in any air cooled engine.
About 2.5 quarts of oil
How much oil does a 2005 Honda shadow Sabre vt1100 and what type should you use
what type of oil should i use in a 1991 Honda cr 80
well monkeys use to ride thease little pit bike back in the 80s thay rode these littlle honda z50 i own a honda z50r really good little bike
Honda ATV oil 10W 40 ...only use ATV oil not car oil ... I go to the top of the crosshatch marks on the dipstick.. :-)
GN4 Honda oil only.
5wt oil. Use Honda oil.