1970 Evinrude Ski-Twin 33 HP Service Repair Manual P/N 4687, Page 19Get this manual

1970 Evinrude Ski-Twin 33 HP Service Repair Manual P/N 4687, Page 19

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LEAF STOP
Figure 3-16 Disassembling Leaf Valves INTAKE MANIFOLD aCheck small hole on manifold which feeds vacuum to cut-out switch hoseDO NOT enlarge hole; only clean outUse #76 drillbCheck hose