SAE 10w30 any major brand. I highly recommend you use Synthetic oil in any air cooled engine.
SAE 10w30 Full Synthetic.
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.
Use SAE 10w40 Full synthetic or conventional oil.
10W40 - Haynes Service Manual
30 Straight weight
how to change oil in a 1986 honda gold wing motorcycle
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The 1986 Honda Rebel has no external oil filter. There is an oil filtering screen just below the oil pump in the engine crankcase.
what kind of oil is used