2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 134Get this manual
1D-23 Power Unit Mechanical: 11) Install timing chain tensioner adjuster (10), then tighten bolts (11) to specified torque"I" "I"
Tightening torque Tensioner adjuster bolt (c): 11 Nm (1.1 kgf-m, 8.0 lbf-ft)
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8) Install timing chain guide (6), then tighten bolt securely
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12) Apply engine oil to timing chain13) Remove the stopper from tensioner adjuster to release plunger14) Turn crankshaft in normal running direction two complete turns and check that crankshaft match mark "A" points toward the top and at the same time, engraved lines "C" and "D" on sprockets aligns with cylinder head cover mating face "G""G" "G"