E4-21NOTE:8 For disposal of used oil consult yourYamaha dealer.8 The oil should be changed more oftenwhen the engine is operated underadverse conditions such as extendedtrolling.206013EMU00380*CHECKING TIMING BELTInspect the timing-belt and replace it ifany of the following signs is observed:8 Cracks in the back of the belt or in thebase of belt teeth.8 Excessive wear at the roots of cogs.8 Rubber portion swollen by oil.8 Belt surfaces roughened.8 Signs of wear on edges or outer surfaceof belt.8 Stretching by 10 mm (0.39 in) or morewhen the belt is pushed with a finger.cCConsult your Yamaha dealer when replac-ing the timing-belt.
