There are various levels for the 1979 RM125N Air Fork Oil Capacity Standard 392mm - approx 13.2 US Ounces Low Level 376mm High Level 424mm
274ml of sae5w/20
Use 10 ounces for each fork. Less if you want softer suspension, perhaps 8 ounces.
I have a Clymer Suzuki LS650 manual '86-'04 (Copyright 2005) and on page 277 it says to add 441 cc (14.91 oz) of DEXRON ATF or SAE 15W fork oil. It also says to hold the fork assembly verticle and use an oil level gauge to get the correct level of 75mm (2.95 in).
vl250 fork oil quantity
gr650 is 8.9 oz.per fork, gr650x is 7.8 oz.per fork
The Suzuki GS1000 typically requires approximately 200-220cc of fork oil per fork leg. The recommended weight for the fork oil is typically around 10W, but this can vary depending on rider preference and riding conditions. It is important to consult the owner's manual or a professional mechanic to ensure the correct amount and weight of fork oil is used for optimal performance and safety.
14oz per fork
227ml per fork
521 ml SAE10. Or 97 mm level with compressed forkleg without spring.
The front fork tubes in a 1996 Suzuki Intruder VS 800 are 40mm.
644 millilitres per fork leg