1975 Evinrude 40 HP Outboards Service Manual, PN 5093, Page 24Get this manual
AL IGNING RECESSES
L AF PLAT AF VALV LEAF STOP
Figure 3-16Disassembling Leaf Valves INTAKE MANIFOLD Figure 3-14Re-seating or Installing Core Plug aCheck small hole on manifold which fe eds vacuum to cut-out switch hoseDO NOT enlarge hole; only clean outUse #76 drillbCheck hose from manifold to cut-out switch for clogging, kinks, or pin holesSOLENOID The choke solenoid requires very little attentionFor efficient operation, the plunger should be free from corrosion so that it can move freely in the solenoid housingIt is not necessary to lubricate the solenoid plunger since the oil film will only attract dust and cause sluggish plunger movementSolenoid resistance should test 2-3 ohms
REASSEMBLY OF CARBURETOR