Fork o il capacity 650 raptor - 2003 Cagiva Raptor 650

This is Suzuki standard for a Pointy, sure someone will be along soon to say if Curvy is the same or not. Start at the standard air gap then see how it feels from there.

Front fork oil capacity (each leg) :
490 ml (16.56/17.25 US/Imp oz) for SV650
488 ml (16 .49/17.18 US/Imp oz) for SV650S

Fork oil level :
92 mm (3 .62 in) for SV650
94 mm (3.70 in) for SV650S

Oil Capacity each fork 286+/-4cm cubed {10.1+/-0.14Impoz,9.67+/-0.14US oz}
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should be either rotate out of the way or there are screws/bolts you are not seeing that you need to remove in order to take off the metal plate and the battery :)

Please check the owner's manual.