2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 152Get this manual

2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 152

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1D-41 Power Unit Mechanical: Valve spring free length Check spring strength by measuring free lengthIf lower than service limit, replace valve springSpecial tool (A): 0990020101 (Vernier calipers (150