Upgrade meaning what? More power? Longer touring range? Appearance? Be more specific......
There's no governor on a Honda Nighthawk 250. A Honda 250 Nighthawk is a motorcycle, not a lawnmower.
1993 was the last production year of the Nighthawk. Source: http://hondanighthawks.net/750.htm No, it was 2003 for the Nighthawk 750. The little Nighthawk 250 is still being made. Both were introduced in 1991. The 750 was Motorcycle of the Year that year.
The CB250 Nighthawk motorcycle has an engine capacity of 3 quarts of 10W40 motor oil. The recommended filter is the KN 111 filter.
I don't know, but if it helps: My 1995 250 Nighthawk cost around $3000.00 with tax.
The manual.
On an '84 CB450SC (similar) it was 48+...
Should be 5 gallons. I have a '92.
You can use any kind of 10w-40 oil for a nighthawk
About 16 US fl oz.
I own a 94 Nighthawk 250 and my owners manuel says to us 10w-40. It also says to "Use only high detergant, premium quality oil cerified to meet API Service Classification SF or SG."
two and half turns (so it is 5half turns)
I have a "Clymer Honda CB 750 Nighthawk 1991-1993 & 1995-1999" book. It says for sprocket sizes, "Drive Sprocket 15 teeth, Driven Sprocket 38 teeth". Nothing else listed in there or in the Owner's Manual as to size.