Look at the bottom of the engine cover below the oil filler cap. A sight window with 2 marks (min/max) beside it. Get the bike on level ground and hold it vertical and the oil level should be between the 2 marks. If you just shut the engine off, give it a couple of minutes to drain down before checking the oil level. Owners manual should give you info on how much oil but mine also has it in raised letters beside the filler cap.
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