I've just re-built the forks using XJ4Ever's Performance Fork Rebuild Kit and I'm not sure what the right amount of fork oil (by volume or level) I need. From XJ4Ever: "1982 XJ650RJ Seca: 236cc or 7.98 fluid ounces. 10W fork oil. Fork oil level is specified as 400mm (15.75") below the top of the tube without the spring installed, forks fully collapsed." This matches the owner's manual. XJ4Ever adds, "...the above fork oil volumes are for use only when using the stock fork springs. The use of aftermarket performance front fork coil springs will change those volumes....A better way to determine the amount of fork oil that is needed and necessary is via the measurement of the fork oil level within the tubes...in any case, if using aftermarket springs, the factory oil level recommendation is not always useful" Making me more unsure, the oil level (400mm below...) is dramatically different than for the 650 Seca Turbo (180mm), despite their having almost the same oil volume (236cc vs. 238cc). As always, your experience and input is appreciated!