May sound kinda thick of me but I always filled it till the oil level was up to the first or second thread for the cap. Always worked for me on both wet and dry models. If you look a the so called dipstick, its right there at that level. Those dipsticks always look broken to me. Or you can go by volume. .7l for dry and .8l for wet.
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MC21 300R w/SE bits, Rossi 2001
MC28SE Silhouette Repsol