1976 Johnson 4HP 4R76, 4W76 Outboards Service Repair Manual P/N JM-7603, Page 7Get this manual
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SPECIFICATIONS Model 4W76 (Weedless gearcase) 4R 76 (Stal1dard gearcase) hp at 4500
.020 il1cl1 Number 580321 .18 to .22 MfdPart No580971
COIL TEST SPECIFICATIONS