Suzuki FL125S Service Manual page 48

3-11 ENGINE
STARTER MOTOR
• Remove the starter motor.
CAMSHAFT SPROCKET/AUTOMATIC DECOMP.
• Remove the valve timing inspection plug 1 and generator
cover plug 2.
• Remove the camshaft sprocket cover 3 and gasket.
• Turn the generator rotor with a box wrench to set the piston at
TDC on the compression stroke. (Turn the generator rotor
until the line A on the generator rotor is at the center of the
hole in the valve timing inspection plug.)
• Align the mark B on the camshaft sprocket with the concave
line C of the cylinder head.