How do I check the oil level on my fazer fz6 ? And a manual would help to ??

Dead right there, a manual would tell you all you need to know. :-)

Lol. Should be a sight glass. Typically rhs near the f pegs but im not sure.

Bike on the centre stand, or if not one, someone holding the bike up straight. Find the sightglass, oil level should be half way up. Dont overfill

If no sightglass, then typically there is a rod atached to the underside of the filler cap, should be an upper and lower level indicator on it.

Most newer Yamaha's have a sight glass, do what NSD said but:

1. You also have to run the motor for a minute

2. Then turn off and watch the sight glass fill up after 15 seconds or so. (the time maybe different on this model)

3. Then check what the oil level is at that time not later.

This is the usual way of checking Yamaha oil level as they have level not pressure switches.

Click the link for an owners manual.

http://www.yamaha-motor.eu/uk/services/owner-manuals/index.aspx