Suzuki DF25/DF30 Four Stroke Service Manual, Page 134Get this manual

POWER UNIT 7-17
CYLINDER HEAD ASSEMBLY
(Cylinder headvalvecamshaft)

REMOVAL
Prior to removing cylinder head: Remove the power unit(see page 7-2 to 7-6) Remove the timing chain(see page 7-11 to 7-12) 1Loosen twelve (12) cylinder head bolts in the order indicated in figure and remove them2Remove cylinder head assembly and head gasket

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