it shares the same oil as the motor
10-20 based on if you spill it alot. Above answer is better left out. Which Nighthawk? I think there is a 250 and a 750. '91-'94 CB 250: 1.4qt (1.3L) 10W40 Honda oil GN4. '91-'93 CB 750 : 2.9qt (2.7L) 10W40 Honda oil GN4.
The CB stands for the maker specifically in this case Carl Bucherer and the 750 is the gold 18 kt
The recommended oil weight for a Honda CB 750 is typically 10W-40 for most models, especially in moderate temperatures. However, it's essential to check the owner's manual for your specific model year, as recommendations can vary slightly. Always use oil that meets the appropriate API service ratings for optimal performance and protection.
85 750 Sandcasts,
I can't really remember, but was it not 3.5 litres? This you can check while the engine is on at idle, check the stick level. ---
.028 in.
one down four up
undo the bolts numb nuts
ap.130 top end
You can buy parts for your motorcycle online. Oldbikebarn.com has replacement parts for a Honda CB 750, as does ebay.com. Also check out the classifieds in your local newspaper and any motorcycle shops in your area.
I can remember what it used to be, but, hey wer'e living in the 19:th century; check out the new oils that are available on the market now. The chance is that they will exceed, with margin, your expectations. ---
I might been biased here; The Honda 750- four, offcourse! Sure, it does not run as smoothly as the CB-500, but, who cares? ---