Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 33Get this manual
PERIODIC MAINTENANCE
VALVE CLEARANCE
Inspect initially after 20 hours (1 month) and every 200 hours (12 months) thereafter1Remove the following parts: Side covers (See page 7-2 Flywheel cover Spark plugs Ignition coils 2Remove the breather hose from the cylinder head cover 13Disconnect the fuel hoses from the low pressure fuel pump
4Remove the six bolts and the cylinder head cover 1